Caspian Sea Biodiversity Project under umbrella of Caspian Sea Environment Program

Check-list for Caspian Sea phytoplankton

by Rinat Gogorev

	Family	Species	Year and Author of Description	Origin (ecology)	Relative magnitude (geography)	Status (last found)	Distribution areas	Date of the last study done (for endangered species)
1	2	3	4	5	6	7	8	9
Division Cyanophyta / Cyanoprokariota / Cyanobacteria
Order Chroococcales
1.	Synechococcaceae	Aphanothece clathrata	W. et G.S. West 1906	Freshwater	Widespread in temperate zones, cosmopolite	Single-rare	North, South Caspian, Lower Volga	1996. Rakhmatulina
2.		A. elabens (=A. elabens f. minor (Nyg.) Elenk.)	(Brébisson) Elenkin 1838	Freshwater	Widespread in tropical zone	Rare	North, Middle Caspian, Volga river area	1992. Nurieva, Akhundova
3.		A. microscopica	Nägeli 1849	Freshwater, benthic	Widespread in temperate zones		Lower Volga	2003. Phytoplankton...
4.		A. stagnina	(Spreng.) A. Braun 1863	Brackish-freshwater	Widespread in temperate zones	Common	North Caspian, Volga river area	1997. Rakhmatulina
5.		Rhabdogloea planctonica (=Dactylococcopsis planctonica Teiling)	(Teiling) Komarék 1983	Freshwater	Widespread	Rare	North Caspian	1977. Rakhmatulina
6.		R. smithii (=D. raphidioides Hansgirg)	(R. et F. Chodat) Komarék 1983	Freshwater -brackish	Widespread in temperate zone	Rare	North Caspian, Volga river estuary and lower part	1992. Nurieva, Akhundova
7.		Cyanothece aeruginosa (=Synechococcus aeruginosus Näg.)	(Nägeli) Komarék 1976	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
8.	*Merismopediaceae (=Gomphosphaeriaceae, =Coelosphaeriaceae)*	Synechocystis salina	Wislouch 1924	Brackish	Limited, diverse	Rare	North Caspian, Volga river area	1992. Nurieva, Akhundova
9.		Aphanocapsa delicatissima (=Microcystis pulverea f. delicatula (W. et G.S.West) Elenk.)	W. et G.S.West 1912	Brackish-freshwater		Rare	North Caspian	1992. Nurieva, Akhundova
10.		A. grevillei (=M. grevillei (Berk.) Elenkin)	(Berkeley) Rabenhorst 1865	Freshwater	Widespread in temperate zones	Very rare	North, South Caspian	1992. Nurieva, Akhundova
11.		A. holsatica (=M. pulverea f. holsatica (Lemm.) Elenk.)	(Lemmermann) Cronberg et Komarék 1994	Brackish-freshwater		Very rare	North Caspian, Volga river area	1992. Nurieva, Akhundova
12.		A. incerta (=M. pulverea f. incerta (Lemm.) Elenkin)	(Lemmermann) Cronberg et Komarék 1994	Brackish-freshwater	Widespread, cosmopolite	Rare-common	North Caspian, Lower Volga	1997. Rakhmatulina
13.		A. parasitica (=M. pulverea f. parasitica (Êütz.) Elenk.)	(Êützing) Komárek et Anagnostidis 1995	Brackish-freshwater			North Caspian	1992. Nurieva, Akhundova
14.		Merismopedia convoluta (=Pseudoholopedia convoluta (Bréb.) Elenkin)	Brébisson 1849	Brackish-freshwater	Mainly in tropical zone, cosmopolite (?)	Rare	North Caspian	1992. Nurieva, Akhundova
15.		M. elegans	A. Braun 1849	Freshwater -brackish	Widespread, cosmopolite (?)	Rare	North Caspian, Iran	1992. Nurieva, Akhundova
16.		M. glauca (=M. glauca f. mediterranea (Näg.) Collins	(Ehrenberg) Êützing 1845	Freshwater -brackish	Widespread, cosmopolite	Often	North, South, Middle Caspian, Lower Volga	1992. Nurieva, Akhundova
17.		M. insignis (=M. glauca f. insignis (Schkorb.) Geitl.)	Škorbatov 1923	Freshwater	Widespread in temperate zones	Not very common	Lower Volga	2003. Phytoplankton...
18.		M. minima	G. Beck 1897	Subaerophytic, freshwater-brackish	Cosmopolite		Lower Volga	2003. Phytoplankton...
19.		M. punctata	Meyen 1839	Freshwater -brackish	Widespread in tropical zone, cosmopolite	Often	North, South, Middle Caspian, Lower Volga	1997. Rakhmatulina
20.		Merismopedia tenuissima	Lemmermann 1898	Freshwater -brackish	Widespread in Europe, cosmopolite	Common	North, South, Middle Caspian, Lower Volga	2000. Rakhmatulina
21.		M. warmingiana (=M. minima Beck)	Lagerheim 1883	Brackish-freshwater	Rare , cosmopolite (?)	Single	North, South Caspian, Iran	2000. Rakhmatulina
22.		Coelosphaerium kuetzingianum f. kuetzingianum	Nägeli 1849	Freshwater	Widespread in tropical zone, cosmopolite (?)	Single-often	North Caspian, Lower Volga	1992. Nurieva, Akhundova
		C. kuetzingianum f. aerugineum	(Lemmermann) Elenkin et Voronichin			Very rare	North Caspian, Volga river area	1992. Nurieva, Akhundova
23.		Coelomoron pusillum (=Coelosphaerium pusillum Van Goor)	(Van Goor) Komarék 1988	Freshwater	Widespread in temperate and tropical(?) zones		Lower Volga	2003. Phytoplankton...
24.		Microcrocis irregularis (=Holopedia irregularis Lagerh.)	(Lagerheim) Geitler 1942				North Caspian	1992. Nurieva, Akhundova
25.		Snowella lacustris (=Gomphosphaeria lacustris Chodat, = G. lacustris f. compacta (Lemm.) Elenk.?)	(Chodat) Komarék et Hindák 1988	Freshwater -brackish	Widespread, cosmopolite (?)	Rare-often, dominant	North, Middle, South Caspian, Lower Volga	1997. Rakhmatulina
26.		S. rosea	(Snow) Elenkin 1938	Freshwater	In North America	Rare	North, South Caspian	1992. Nurieva, Akhundova
27.		Gomphosphaeria aponina f. aponina	Êützing 1836	Ubiquist	Widespread in temperate and subtropic zones	Common	North, South, Middle Caspian	1997. Rakhmatulina
		G. aponina f. cordiformis	(Wolle) Elenkin			Very rare-often	North Caspian	1992. Nurieva, Akhundova
28.		G. virieuxix (=G. aponina f. delicatula (Vir.) Elenk.)	Komarék et Hindák 1988			Rare-often	North Caspian, Volga river area	1992. Nurieva, Akhundova
29.	Microcystaceae	Microcystis aeruginosa	(Êützing) Êützing 1846	Freshwater -brackish	Widespread, cosmopolite	Often	North, South Caspian, Lower Volga	2000. Rakhmatulina
30.		Microcystis flos-aquae (=M. aeruginosa f. flosaquae (Wittr.) Elenkin)	(Wittr.) Kirchner 1898	Freshwater -brackish	Widespread, cosmopolite (?)		North Caspian	2000. Rakhmatulin
31.		M. ichthyoblade	Êützing 1843	Freshwater	Widespread in northern temperate zone	Single species	North, South Caspian	1992. Nurieva, Akhundova
32.		M. novacekii (=M. marginata Kütz.)	(Komarék) Compère 1974	Freshwater	Common in tropical zone	Rare	North Caspian	1992. Nurieva, Akhundova
33.		M. pulverea	(Wood) Forti 1907	Brackish-freshwater	Widespread, cosmopolite	Common	North, Middle, South Caspian, Lower Volga	1997. Rakhmatulina
34.		M. wesenbergii	(Komarék) Komarék 1968	Freshwater	Cosmopolite	Rare-very often	North Caspian, Lower Volga	1992. Nurieva, Akhundova
35.	*Chroococcaceae (=Gloeocapsaceae)*	Chroococcus limneticus (=Gloeocapsa limnetica (Lemm.) Hollerbah)	Lemmermann 1898	Freshwater	Widespread, cosmopolite	Very rare-often	North, Middle, South Caspian, Volga river area	1992. Nurieva, Akhundova
36		C. minimus (=G. minima (Keissl.) Hollerb., = G. minima f. smithii Hollerb.?)	(Keissler) Lemmermann 1904	Brackish-freshwater	Diverse restrictedly in temperate zones	Very rare-common	North, South Caspian, Volga river area	1992. Nurieva, Akhundova
37.		C. minutus (=G. minuta (Êütz.) Hollerbah)	(Êützing) Nägeli 1849	Freshwater -brackish	Widespread in temperate zones, cosmopolite (?)	Rare	North, South Caspian, Lower Volga	1997. Rakhmatulina
38.		C. turgidus (=G. turgida (Êütz.) Hollerbah)	(Êützing) Nägeli 1849	Ubiquist, freshwater-brackish	Common in temperate zone, cosmopolite (?)	Rare	North, South Caspian, Lower Volga	1997. Rakhmatulina
39.		Gloeocapsa alpina	(Nägeli) Brand 1900	Brackish-freshwater			North Caspian	1992. Nurieva, Akhundova
40.		G. cohaerens	(Brébisson) Hollerbah 1938	Brackish-freshwater	Widespread	Rare	North, South Caspian, Volga river area	1992. Nurieva, Akhundova
41.		G. compacta	Êützing 1845				North Caspian	1992. Nurieva, Akhundova
42.		G. minor f. minor (=G. minor f. dispersa (Keissl.) Hollerb.)	(Êützing) Hollerbah 1938	Brackish-freshwater	Widespread	Very rare-often	North, South Caspian, Volga river area	1992. Nurieva, Akhundova
		Gloeocapsa minor f. glomerata	Fremy	Freshwater			North Caspian	1992. Nurieva, Akhundova
43.		G. punctata	Nägeli 1849	Brackish			North Caspian	1992. Nurieva, Akhundova
44.		Gleocapsopsis crepidinum (=Gloeocapsa crepidinum (Thur.) Thur.)	(Thuret) Geitler ex Komárek 1993	Brackish			North Caspian	1992. Nurieva, Akhundova
45.		G. magma (=G. magma (Bréb.) Êütz. emend. Hollerb.)	(Brébisson) Komárek et Anagnostidis 1986	Freshwater	Cosmopolite		North Caspian, Lower Volga	1992. Nurieva, Akhundova
46.		Gloeothece palea	(Êützing) Rabenhorst 1865			Very rare	North Caspian	1992. Nurieva, Akhundova
47.	Tubiellaceae	Johannesbaptistia pellucida f. pellucida	(Dickie) Taylor et Drouet 1938	Freshwater -brackish	Widespread	Rare	North, South Caspian	1992. Nurieva, Akhundova
		J. pellucida f. anabaeniformis	I. Kisselev	Freshwater -brackish			North Caspian	1992. Nurieva, Akhundova
		J. pellucida f. caspica	I. Kisselev	Freshwater -brackish			North Caspian	1992. Nurieva, Akhundova
48	*Hyellaceae (=Pleurocapsaceae)*	Pleurocapsalis rivularis	Kützing	Freshwater	Widespread in temperate zone			2003. Phytoplankton...
Order Oscillatoriales
49.	Pseudanabenaceae	Pseudanabaena limnetica (=Oscillatoria limnetica Lemm.)	(Lemmermann) Komárek 1974	Freshwater	In temperate and tropic zones, cosmopolite (?)	Rare	North, South Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
50.		P. mucicola (=Phormidium mucicola Hub.-Pest. et Naumann)	(Huber-Pestalozzi et Naumann 1929)	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
51.		Limnothrix planctonica (=Oscillatoria planctonica Wołoszyńska)	(Wołoszyńska) Meffert 1988	Freshwater	In stagnant and flowing waters of temperate zones	Rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
52.		L. redekei (=O. redekei Van Goor)	(Van Goor) Meffert 1988	Freshwater	Widespread in temperate zones	Numerous	Middle, South Caspian	Azerbaijan
53.		Jaaginema geminatum (=Oscillatoria geminata Meneghin ex Gomont)	(Meneghin ex Gomont) Anagnostidis et Komárek 1988	Thermophi lic, brackish-watery	Cosmopolite (?)	Rare	South Caspian, Azerbaijan, Lower Volga	2003. Phytoplankton...
54.		J. kisselevii (=O. kisselevii Anissimova)	(Anissimova) Anagnostidis et Komárek 1988	Brackish	Often seen	Rare	North Caspian	1971. Levshakova
55.		J. pseudogeminatum (=O. pseudogeminata Schmid)	(Schmid) Anagnostidis et Komárek 1988	Subaeroph ytic, freshwater	In ponds and ditches of temperate and tropic zones	Rare	North, South Caspian	1971. Levshakova
56.		Planktolyngbya contorta (=Lyngbya contorta Lemm.)	(Lemmermann) Anagnostidis et Komárek 1988	Freshwater -brackish	Widespread	Rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
57.		P. limnetica (=L. limnetica Lemm.)	(Lemmermann) Komárkova-Legnerová et Cronberg 1992	Ubiquist, freshwater	Cosmopolite (?), in temperate zones	Widespre ad over the Sea	North, South Caspian, Lower Volga	1997. Rakhmatulina
58.		Leptolyngbya angustissima (=Phormidium angustissimum W. et G.S. West)	(W. et G.S. West) Anagnostidis et Komárek 1988	Freshwater	Widespread in tropic and subtropic zones	Rare	North Caspian	1997. Rakhmatulina
59.		L. fragilis (=P. fragile (Menegh.) Gom.)	(Gomont) Anagnostidis et Komárek 1988	Freshwater -brackish	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
60.		L. lagerheimii (=Lyngbya lagerheimii Gomont)	(Gomont) Anagnostidis et Komárek 1988	Freshwater	Often, widespread, cosmopolite (?)	Single species	South Caspian
61.		L. perelegans (=Lyngbya perelegans Lemm.)	(Lemmermann) Anagnostidis et Komárek 1988	Freshwater -brakish	Rare, in tropic zone	Single species, small numbers	South Caspian
62.		L. valderiana (=Phormidium valderiae (Depl.) Schmidle)	(Gomont) Anagnostidis et Komárek 1988	Freshwater -brackish	Widespread, cosmopolite (?)	Rare	Middle Caspian
63.	Schizothrichaceae	Schizothrix lenormandiana	Gomont	Freshwater	Widespread in temperate zones	Rare, single species	South Caspian
64.		Trichocoleus tenerrimus (=Microcoleus tenerrimus Gomont)	(Gomont) Anagnostidis 2001	Brackish-marine	Widespread in temperate and tropic zones	Common	South Caspian
65.	Phormidiaceae	Microcoleus chthonoplastes	Thuret ex Gomont 1892	Marine-brackish	Widespread, cosmopolite (?)	Often	South Caspian
66.		M. subtorulosus	Gomont ex Gomont 1892	Freshwater	Widespread in temperate and tropic zones	Single species	Middle Caspian
67.		Geitlerinema amphibium (=Oscillatoria amphibia Agardh ex Gomont)	(Agardh ex Gomont) Anagnostidis 1989	Freshwater -brackish	Cosmopolite (?)	Rare	North Caspian, Lower Volga	1998. Rakhmatulina
68.		Planktothrix agardhii (=Oscillatoria agardhii Gomont)	(Gomont) Anagnostidis et Komárek 1988	Freshwater	Widespread in temperate zones, cosmopolite (?)	Single species	South Caspian, Azerbaijan, Lower Volga	2003. Phytoplankton...
69.		Trichodesmium lacustre (=Oscillatoria lacustris (Kleb.) Geitl)	Klebahn 1895	Freshwater -brackish	In temperate and tropic zones	Often	North Caspian	1971. Levshakova
70.		Phormidium ambiguum	Gomont ex Gomont 1892	Freshwater	Cosmopolite (?), in tropic and temperate zones	Often	Middle, South Caspian
71.		P. amoenum (=Oscillatoria amoena Êützing ex Gomont)	Êützing ex Anagnostidis et Komárek 1988	Freshwater	Widespread in temperate and tropic zones	Single species	South Caspian	Azerbaijan
72.		P. beggiatoiforme (=O. beggiatoiformis Gomont)	(Gomont) Anagnostidis et Komárek 1988	Freshwater	Cold waters of Europe and USA	Single species	Middle Caspian	Azerbaijan
73.		P. boryanum (=O. boryana Bory ex Gomont)	(Bory ex Gomont) Anagnostidis et Komárek 1988	Brackish-watery	Europe, USA, Central America	Single species	Middle Caspian	Azerbaijan
74.		P. breve (=O. brevis Êützing ex Gomont)	(Êützing ex Gomont) Anagnostidis et Komárek 1988	Freshwater	Widespread, cosmopolite	Single species	North, South Caspian	1968. Proshkina-Lavrenko, Makarova
75.		P. chalybeum (=O. chalybea Mertens ex Gomont)	(Mertens ex Gomont) Anagnostidis et Komárek 1988	Freshwater	Widespread, cosmopolite (?)	Rare	North, South Caspian	1968. Proshkina-Lavrenko, Makarova
76.		Phormidium formosum (=O. formosa Bory ex Gomont)	(Bory ex Gomont) Anagnostidis et Komárek 1988	Brackish-watery	Widespread	Single species	South Caspian	Azerbaijan
77.		P. irriquum (=O. irriqua Êützing ex Gomont)	(Êützing ex Gomont) Anagnostidis et Komárek 1988	Freshwater	In stagnant and flowing waters	Rare	North, South Caspian	1971. Levshakova
78.		P. laetevirens (=O. laetevirens Crouan ex Gomont)	(Crouan ex Gomont) Anagnostidis et Komárek 1988	Marine-brackish	In Europe	Rare	South Caspian	Azerbaijan
79.		P. molle	(Kützing) Gomont 1892	Freshwater -brackish	Widespread, cosmopolite (?)	Rare	Middle Caspian, Lower Volga	2003. Phytoplankton...
80.		P. okenii (=O. okenii Agardh ex Gomont)	(Agardh ex Gomont) Anagnostidis et Komárek 1988	Freshwater -brackish	Widespread, cosmopolite (?)	Rare	North, South Caspian	1968. Proshkina-Lavrenko, Makarova
81.		P. papuraceum	Gomont ex Gomont 1892	Subaerophi tic, freshwater-brackish	Widespread, cosmopolite (?)	Rare	Middle, South Caspian
82.		P. pavlovskoense	Elenkin 1949	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
83.		P. tenue (=P. tenue (Menegh.) Gom.)	(Agardh ex Gomont) Anagnostidis et Komárek 1988	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
84.		Porphyrosiphon lutea (=Lyngbya lutea Gomont)	(Gomont ex Gomont) Anagnostidis et Komárek 1988	Marine-brackish	Widespread, cosmopolite (?)		South Caspian
85.		Spirulina labyrinthiformis	Êützing ex Gomont 1892	Brackish-watery, marine (?)	Cosmopolite (?), in temperate and tropic zones	Rare, small numbers	Middle, South Caspian
86.		S. laxissima	G.S. West 1907	Freshwater	Rare	Single species	North Caspian, Iran	1971. Levshakova
87.		S. major	Êützing ex Gomont 1892	Freshwater -brackish	Widespread, cosmopolite (?)	Rare, single species	Middle Caspian
88.		Spirulina meneghiniana	Zanardini ex Gomont 1892	Marine	Cosmopolite	Single species	North Caspian	1997. Rakhmatulina
89.		S. subsalsa (=S. tenuissima Êütz.)	Oersted ex Gomont 1892	Marine-brackish	Cosmopolite	Rare	Middle, South Caspian	Azerbaijan
90.		S. subtillissina	Êützing ex Gomont 1892	Freshwater -brackish	Widespread, cosmopolite (?)	Rare, small numbers	Middle, South Caspian
91.		Arthrospira platensis (=Spirulina platensis (Nordstedt) Geitl.)	(Nordstedt) Gomont 1892	Freshwater	In South America	Rare	Middle, South Caspian	Azerbaijan
92.	Oscillatoriaceae	Oscillatoria anguina	Bory ex Gomont 1892	Freshwater	Often seen, cosmopolite (?)	Rare	North Caspian	1971. Levshakova
93		O. coerulescens	Gicklh.		In temperate zone		Lower Volga	2003. Phytoplankton...
94.		O. corallinae	Êützing ex Gomont	Marine-brackish	In northern hemisphere, cosmopolite (?)	Single species	South Caspian	Azerbaijan
95.		O. curviceps	Agardh ex Gomont 1892	Freshwater	Common in north temperate zone, cosmopolite (?)	Often	North Caspian	1971. Levshakova
96.		O. limosa	Agardh ex Gomont 1892	Freshwater -brackish	Widespread, cosmopolite	Rare	North, South Caspian, Iran, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
97.		O. lloydiana	Gomont 1899	Brackish-watery		Single species	South Caspian	Azerbaijan
98.		O. margaritifera	Êützing ex Gomont 1892	Marine-brackish	Widespread, cosmopolite (?)	Rare	North, Middle, South Caspian	1998 Rakhmatulina
99.		O. princeps	Vaucher ex Gomont 1892	Brackish-watery	Widespread, cosmopolite (?)	Rare	North Caspian	1971. Levshakova
100.		O. putrida	Schmidle 1901	Freshwater	Cosmopolite (?)	Rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
101.		O. rupicola	Hansgirg	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
102.		O. sancta	Êützing ex Gomont 1892	Freshwater -brackish	Widespread, cosmopolite (?)	Rare	North, South Caspian
103.		O. setigera	Aptekar	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
104.		O. simplicissima	Gomont	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
105.		Oscillatoria tenuis	Agardh ex Gomont 1892	Freshwater	Cosmopolite (?)	Single species	North, South Caspian, Iran, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
106.		Lyngbya aestuarii	(Mert.) Liebman ex Gomont 1892	Marine-brackish	Widespread	Rare	North, South Caspian	1971. Levshakova
107.		L. confervoides	Agardh ex Gomont 1892	Marine- brackish	Rare, widespread, cosmopolite (?)	Single species	South Caspian
108.		L. majuscula	Harvey ex Gomont 1892	Marine	Widespread in tropic zone	Rare	Middle Caspian
109.		L. martensiana	Meneghin ex Gomont 1892	Freshwater -brackish	Often, cosmopolite (?)		Middle, South Caspian
110.		L. semiplena	Agardh ex Gomont 1892	Marine	Widespread, cosmopolite		South Caspian
111.	Homoeotrichaceae	Heteroleiblenia kuetzingii (=Lyngbya kuetzingii Schmidle)	(Schmidle) Compère 1985	Freshwater	Widespread, cosmopolite (?)	Often	Middle, South Caspian, Lower Volga	2003. Phytoplankton...
Order Nostocales
112.	Scytonemataceae	Scytonema crispum	(Agardh) Bornet 1889	Freshwater			South Caspian
113.	Microchaetaceae	Tolypothrix distorta f. penicillata	(Agardh) Êossinsk. 1938	Freshwater	Limited distribution	Common	North Caspian	1971. Levshakova
114.	Rivulariaceae	Ñalothrix scopulorum	(Weber et Mohr) Agardh ex Bornet et Flahault 1886	Marine-brackish	Cosmopolite		South Caspian
115.		Rivularia atra	Roth ex Bornet et Flahault 1886	Marine-brackish	Widespread in temperate zones		Middle, South Caspian
116.		R. planctonica	Elenkin 1921	Marine-brackish	Limited distribution	Rare	North Caspian	1971. Levshakova
117.	*Nostocaceae (=Anabaenaceae, =Aphanizomenonaceae* =Nodulariaceae)**	Anabaena abnormis	Proshkina-Lavrenko 1961	Brackish-freshwater		Very rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
118.		A. affinis	Lemmermann	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
119.		Anabaena attenuata	I. Kisselev 1940	Freshwater		Single species	North Caspian	1968. Proshkina-Lavrenko, Makarova
120.		A. bergii	Ostenfeld 1908	Brackish-watery	Cosmopolite (?)	Rare	Middle, South Caspian, Iran, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
121.		A. constricta	(Szaf.) Geitler 1925	Freshwater			North Caspian	1971. Levshakova
122.		A. contorta	Bachmann 1921	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
123.		A. flos-aquae	(Lyngbye) Brébisson ex Bornet et Flahault 1886	Freshwater	Widespread	Single species	North Caspian	1997 Rakhmatulina
124.		A. hassalii	(Kützing) Wittrock	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
125.		A. kisselevii	Proshkina-Lavrenko 1961	Brackish-watery	Rare	Often	North, Middle Caspian	1971. Levshakova
126.		A. oscillarioides	Bory ex Bornet et Flahault 1886	Freshwater			North Caspian	1971. Levshakova
127.		A. planctonica	Brunth.	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
128.		A. reniformis	Lemmermann emend. Aptekar 1927	Brackish-freshwater	Cosmopolite (?)	Single species, rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
129.		A. scheremetievi	Elenkin	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
130.		A. sigmoideae	Nygaard 1949	Brackish			North Caspian	1971. Levshakova
131.		A. spiroides	Klebahn 1895		Widespread	Single species	North, Middle Caspian	1998. Rakhmatulina
132.		A. subcylindrica	Borge 1921	Freshwater	Widespread	Rare	North Caspian	1971. Levshakova
133		A. viguieri	Denis et Fremy	Freshwater	In temperate zone		Lower Volga	2003. Phytoplankton...
134.		Anabaenopsis arnoldii (=Anabaena caspica Ostf., =A. knipowitschii Ussatsch.)	Aptekar 1926	Brackish-freshwater	Rare	Rare-single	North Caspian, Iran	1971. Levshakova
135.		A. circularis f. circinalis (=Anabaena circularis (Kütz.) Hansg.)	Kützing	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
136.		Anabaenopsis circularis f. tanganyikae					Middle, South Caspian	1970. Babayev
137.		A. cunningtonii	R. Taylor 1932	Brackish-freshwater		Common	North Caspian	1971. Levshakova
138.		A. elenkinii	V. Miller 1923	Brackish-freshwater	Spread over limited territory	Rare	North Caspian	1971. Levshakova
139.		A. nadsonii	Woronichin 1929	Brackish- watery	Rare	Numerous	North Caspian	1971. Levshakova
140.		A. tanganyikae	(G.S. West) V. Miller 1923	Brackish-freshwater		Rare	North Caspian	1996 Rakhmatulina
141.		Aphanizomenon aphanizomenoides (=Anabaena aphanizomenoides Forti)	(Forti) Horec. Komárek 1979	Brackish-freshwater		Very rare	North Caspian, Iran	1971. Levshakova
142.		A. flos-aquae	Ralfs ex Bornet et Flahault 1886	Brackish-freshwater	Widespread, cosmopolite (?)	Widespre ad	North, Middle Caspian, Lower Volga	2000. Rakhmatulina
143.		A. issatschenkoi	(Ussatschev) Proshkina-Lavrenko	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
144.		A. ussaczevii	Proshkina-Lavrenko 1963	Brackish-freshwater	Rare	Limited	North Caspian	1971. Levshakova
145.		Cylindrospermus raciborskii (=Anabaenopsis raciborskii Wołosz.)	(Wołoszyńska) Seenayya et Subba Raju 1972	Brackish-freshwater	Widespread, in subtropical zone	Rare, single species	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
146.		Nodularia harveyana	(Thwaites) Thuret ex Bornet et Flahault 1886	Brackish-watery	Widespread	Often	North, South, Middle Caspian	1971. Levshakova
147.		N. spumigena	Mertens ex Bornet et Flahault 1886	Ubiquist	Widespread	Common	North, South, Middle Caspian	1971. Levshakova
Division Chrysophyta
Class Chrysomonadophyceae
Order Chromulinadales
148.	Chromulinaceae	Chromulina freiburgensis	Dofl.	Freshwater	In Europe, cosmopolite (?)	Common	Lower Volga	2003. Phytoplankton...
149.		Chromulina. vagans	Pascher	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
150.	Chrysococcaceae	Chrysococcus rufescens	Klebs	Freshwater	Widespread, cosmopolite (?)	Common	Lower Volga	2003. Phytoplankton...
151.		Kephyrion moniliferum	(Schmid) Bourrelly	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
152.		K. rubri-claustri	Conrad	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
Order Ochromonadales
153.	Ochromonadaceae	Ochromonas sp.					Lower Volga	2003. Phytoplankton...
154.	Dynobryonaceae (=Lepochromo nadaceae)	Dinobryon balticum (=D. pellucidum)	(Schütt) Lemmermann 1900	Marine	Rare	Rare	North, Middle, South Caspian	1997. Rakhmatulina
155.		D. bavaricum	Imhof	Freshwater	Widespread	Not rare	Lower Volga	2003. Phytoplankton...
156.		D. cylindricum	Imhof	Freshwater	Widespread, cosmopolite (?)	Not rare	Lower Volga	2003. Phytoplankton...
157.		D. divergens var. divergens	Imhof	Freshwater	Widespread, cosmopolite (?)	Often	Lower Volga	2003. Phytoplankton...
		D. divergens var. angulatum	(Sel.) Brunth.	Freshwater	Widespread, cosmopolite (?)	Often	Lower Volga	2003. Phytoplankton...
158.		D. elegantissimum	(Korschikoff) Bourrelly	Freshwater			Lower Volga	2003. Phytoplankton...
159.		D. sertularia	Ehrenberg 1835	Freshwater	Widespread	Rare	North, South, Middle Caspian	1971. Levshakova
160.		D. sociale var. sociale	Ehrenberg	Freshwater	Widespread, cosmopolite (?)	Common	Lower Volga	2003. Phytoplankton...
		D. sociale var. stipitatum	(Stein) Lemmermann	Freshwater	Widespread, cosmopolite (?)	Common	Lower Volga	2003. Phytoplankton...
161.		Pseudokephyrion schilleri	(Schiller) Conrad	Freshwater	In Europe, cosmopolite (?)	Not rare	Lower Volga	2003. Phytoplankton...
162.		Mallomonas denticulata	Matv.	Freshwater	In Europe	Often	Lower Volga	2003. Phytoplankton...
163.		M. producta	Iwan.	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
164.		M. tonsurata var. tonsurata	Teiling	Freshwater	Widespread, cosmopolite (?)	Not rare	Lower Volga	2003. Phytoplankton...
		M. tonsurata var. alpina	(Pascher et Ruttn.) Krieger	Freshwater	In temperate zone		Lower Volga	2003. Phytoplankton...
165.	Synuraceae	Synura uvella	Ehrenberg emend. Korschikoff	Freshwater	Widespread, cosmopolite (?)	Often	Lower Volga	2003. Phytoplankton...
Division Bacillariophyta
Class Centrophyceae
Order Thalassiosirales
166.	Thalassiosiraceae	Thalassiosira affinis	Makarova 1961	Brackish-watery	Caspian endemic	Rare	North Caspian	1971. Levshakova
167.		T. baltica (=T. subsalina Pr.-Lavr.)	(Grunow) Ostenfeld 1901	Brackish-watery	Endemic of russian southern seas	Very rare	North, Middle Caspian	1971. Levshakova
168.		T. bramaputrae var. bramaputrae (=Coscinodiscus lacustris Grun.)	(Ehrenberg) Håkansson et Locker 1981	Brackish-freshwater	Widespread	Often	North, South Caspian	1997. Rakhmatulina
		T. bramaputrae var. proximus (=C. proximus Makar.)	(Makarova) Makarova 1988	Brackish-watery	Caspian endemic	Very rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
169.		T. caspica	Makarova 1959	Brackish-watery	Caspian endemic	Rare	North, South, Middle Caspian	1997. Rakhmatulina
170.		T. coronifera	(Proshkina-Lavrenko) Proshkina-Lavrenko 1960	Brackish-watery	Endemic of russian southern seas	All over the Sea	North, South, Middle Caspian	1971. Levshakova
171.		T. decipiens	(Grunow) Joergensen	Brackish-watery	In northern temperate zone	Single species	Middle, South Caspian
172.		T. guillardii	Hasle 1978	Brackish-watery	In temperate zone		Lower Volga	2003. Phytoplankton...
173.		T. incerta	Makarova 1961	Brackish- watery	In northern temperate zone	Often	North, South Caspian	2000. Rakhmatulina
174.		T. parva	Proshkina-Lavrenko 1955	Brackish-watery	Endemic of russian southern seas	Single species	Middle Caspian	Azerbaijan
175.		T. variabilis	Makarova 1959	Brackish-watery	Caspian and Azov endemic	Rare	North, South, Middle Caspian	1971. Levshakova
176.		T. weissflogii (=T. hustedtii var. vana Makar. et Pr.-Lavr.)	(Grunow) Fryxell et Hasle 1979	Freshwater -brackish	In temperate and subtropic zones	Very often	North, South Caspian	1971. Levshakova
177.	Skeletonemataceae	Skeletonema costatum	(Gleville) Cleve 1878	Marine	Widespread	Often	North, South, Middle Caspian	1996. Rakhmatulina
178.		S. cylindraceum	Makarova et Proshkina-Lavrenko 1964	Brackish-watery	Caspian endemic	Rare	North Caspian	1971. Levshakova
179.		S. subsalsum	(Cleve-Euler) Bethge 1928	Freshwater -brackish	In temperate zone	Rare	North Caspian, Lower Volga	1997. Rakhmatulina
180.	Stephanodiscaceae	Stephanodiscus agassizensis	Håkansson et Kling 1989	Freshwater	In temperate zone, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
181.		S. astraea	(Ehrenberg) Grunow 1880	Brackish-freshwater	Cosmopolite	Single species	North, South, Middle Caspian	1996. Rakhmatulina
182.		S. binderanus	(Êützing) Krieger 1927	Freshwater	Limited	Single species	North, South, Middle Caspian	1971. Levshakova
183.		S. delicatulus	Genkal 1985	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
184.		S. hantzschii	Grunow 1880	Freshwater -brackish	Widespread, cosmopolite (?)	Rare	North Caspian, Lower Volga	1997. Rakhmatulina
185.		S. invisitatus (=S. socialis Makar. et Pr.-Lavr.; =Cyclostephanos invisitatus (Hohn et Hell.) Ther., Stoerm. et Hak.)	Hohn et Hellerman 1963	Brackish-watery	In subarctic and temperate zones, cosmopolite (?)	Often	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
186.		S. makarovae	Genkal 1978	Freshwater	In northern hemisphere		Lower Volga	2003. Phytoplankton...
187.		S. triporus var. triporus	Genkal et Kuzmin 1978	Freshwater	In temperate zone of Eurasia		Lower Volga	2003. Phytoplankton...
		S. triporus var. volgensis	Genkal	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
188.		Cyclotella atomus	Hustedt 1937	Freshwater -brackish	Cosmopolite		Lower Volga	2003. Phytoplankton...
189.		C. caspia	Grunow 1878	Marine-brackish	Caspian endemic	Througho ut year	North, South, Middle Caspian	1997. Rakhmatulina
190.		C. meduanae	Germain 1981	Freshwater	-		Lower Volga	2003. Phytoplankton...
191.		C. melosiroides	(Kirchner) Lemmermann 1900	Freshwater	In temperate zone	Common, rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
192.		C. meneghiniana	Êützing 1844	Freshwater -brackish	Cosmopolite	Often	North, South Caspian	2000. Rakhmatulina
193.		Cyclotella planctonica	Brunnthaler 1901	Freshwater	Limited distribution, in Europe		Lower Volga	2003. Phytoplankton...
194.		C. quadrijuncta	(Schröter) von Keissler 1910	Freshwater	Limited distribution, in Europe		Lower Volga	2003. Phytoplankton...
195.		C. radiosa (=C. comta (Ehr.) Êütz.)	(Grunow) Lemmermann 1900	Freshwater	Widespread, cosmopolite (?)	Often	North Caspian, Lower Volga	1996. Rakhmatulina
196.		C. stelligera	Cleve et Grunow 1882	Freshwater	Cosmopolite	Single species	Lower Volga	2003. Phytoplankton...
Order Melosirales
197.	Melosiraceae	Melosira juergensii	Agardh 1824	Marine-brackish	Widespread	Single species	North Caspian	1971. Levshakova
198.		M. moniliformis	(O. Müller) Agardh 1824	Marine-brackish	Widespread	Rare	Middle, South Caspian	1970. Babayev
199.		M. varians	Agardh 1817	Brackish-freshwater	Cosmopolite	Often	North, Middle, South Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
Order Aulacoseirales
200.	Aulacoseiraceae	Aulacoseira ambigua	(Grunow) Simonsen 1979	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
201.		A. distans (=Melosira distans (Ehr.) Êütz.)	(Ehrenberg) Simonsen 1979	Freshwater	Widespread		North Caspian	1971. Levshakova
202.		A. granulata (=M. granulata (Ehr.) Ralfs)	(Ehrenberg) Simonsen 1979	Freshwater	Widespread, cosmopolite (?)	Common	North, Middle, South Caspian, Lower Volga	1997. Rakhmatulina
203.		A. islandica (=M. islandica Müll.)	(O. Müller) Simonsen 1979	Freshwater	Widespread in northern temperate zone	Rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
204.		A. italica (=M. italica (Ehr.) Êütz.)	(Ehrenberg) Simonsen 1979	Freshwater	Widespread, cosmopolite	Rare	North Caspian	1997. Rakhmatulina
Order Coscinodiscales
205.	Hyalodiscaceae	Hyalodiscus sphaerophorus	Makarova 1961	Brackish-watery	Caspian endemic	Rare	North Caspian	1971. Levshakova
206.		Podosira parvula	Makarova et Proshkina-Lavrenko 1964	Brackish-watery	Caspian endemic	Single species	North, South Caspian	1996. Rakhmatulina
207.	Coscinodiscaceae	Coscinodiscus gigas	Ehrenberg 1841	Marine	Widespread in temperate and subtropic zones	Small numbers	North, South, Middle Caspian	1971. Levshakova
208.		C. granii	Gough 1905	Marine-brackish	Widespread in northern hemisphere	Througho ut year	North, South, Middle Caspian	1971. Levshakova
209.		C. jonesianus	(Greville) Ostenfeld 1915	Marine-brackish	Widespread in northern temperate and tropic zones	Often	North, South, Middle Caspian	2000. Rakhmatulina
210.		C. perforatus	Ehrenberg 1844	Marine	Widespread	Single species	North, South, Middle Caspian	1996. Rakhmatulina
211.		C. radiatus	Ehrenberg 1841	Marine	Known for the Tertiary period, cosmopolite	Rare	North, South, Middle Caspian	1968. Proshkina-Lavrenko, Makarova
212.	*Hemidiscasceae (=Eupodiscaceae)*	Actinocyclus ehrenbergii	Ralfs 1861	Marine	Widespread		North, South, Middle Caspian	1971. Levshakova
213.		A. normanii	(Gregory ex Greville) Hustedt 1957	Brackish-watery	Cosmopolite		Lower Volga	2003. Phytoplankton...
214.		A. paradoxus	Makarova 1959	Brackish-watery	Caspian endemic	Rare	North, Middle Caspian	1971. Levshakova
Order Chaetocerotales
215.	Chaetocerotaceae	Chaetoceros abnormis var. simplex (=C. subtilis var. abnormis f. simplex Pr.-Lavr.)	(Proshkina-Lavrenko) Gogorev	Brackish-watery	Endemic of russian southern seas (?)		Middle Caspian	1970. Babayev
216.		C. affinis var. willei	(Gran) Hustedt 1930	Marine-brackish		Single species	Middle, South Caspian	1968. Proshkina-Lavrenko, Makarova
217.		C. ceratosporus	Ostenfeld 1910	Brackish-marine			North, South, Middle Caspian
218.		C. diversicurvatus	Van Goor 1924 emend. Proshkina-Lavrenko et Makarova 1968	Brackish-watery	In Caspian and north seas	Rare	North Caspian	1971. Levshakova
219.		Chaetoceros laciniosus	Schütt 1895	Marine	Widespread	Rare	North, South, Middle Caspian	1968. Proshkina-Lavrenko, Makarova
220.		C. minutissimus	Makarova et Proshkina-Lavrenko 1964	Brackish-watery	Caspian and Azov endemic	Single species	Middle Caspian	1970. Babayev
221.		C. mirabilis	Makarova 1959	Brackish-watery	Caspian endemic	Very often	North, Middle Caspian	1968. Proshkina-Lavrenko, Makarova
222.		C. muelleri	Lemmermann 1898	Brackish- watery	Widespread	Rare	North, South, Middle Caspian	1971. Levshakova
223.		C. neogracilis	Schütt 1895	Brackish- watery	Widespread, cosmopolite	Single species	North, Middle Caspian	1968. Proshkina Lavrenko, Makarova
224.		C. paulsenii	Ostenfeld 1901 emend. Proshkina-Lavrenko 1953	Brackish-watery	In northern temperate zone	During vegetation period	North, South, Middle Caspian	1971. Levshakova
225.		C. peruvianus	Brightwell 1856	Marine-brackish	Cosmopolite (?)		North, Middle Caspian	2005. Fushtei
226.		C. rigidus	Ostenfeld 1901	Brackish-watery	Endemic of russian southern seas	Widespre ad	North, South, Middle Caspian	1971. Levshakova
227.		C. seiracanthus	Gran 1897	Marine-brackish	In seas of moderate warm latitudes	Widespre ad	North, South, Middle Caspian	1970. Babayev
228.		C. similis	Cleve 1896	Brackish-watery	In northern temperate zone
229.		C. simplex	Ostenfeld 1901	Brackish-marine	Widespread	Througho ut year	Norht, South, Middle Caspian	1971. Levshakova
230.		C. socialis f. socialis	Lauder 1864	Brackish- marine	Widespread	Often	North, South, Middle Caspian	1971. Levshakova
231.		C. subtilis f. subtilis	Cleve 1896	Brackish- watery	Widespread	Often	North, South, Middle Caspian	1996. Rakhmatulina
		C. subtilis f. knipowitschii	(A. Henckel) Proshkina-Lavrenko 1961	Brackish-watery			North, South, Middle Caspian	1968. Proshkina-Lavrenko, Makarova
232.		C. tenuissimus (=C. simplex var. calcitrans Pauls.)	Meunier 1913	Brackish-marine	In arctic and northern temperate zones	Rare	North, Middle Caspian	1968. Proshkina-Lavrenko, Makarova
233.		Chaetoceros turbineus	Makarova et Proshkina-Lavrenko 1964	Brackish-watery	Caspian endemic	Rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
234.		C. wighamii	Brightwell 1856	Brackish-marine	Widespread	Througho ut year	North, South, Middle Caspian	2000 Rakhmatulina
235.	Acanthocerataceae	Acanthoceras zachariasii	(Brun) Simonsen 1979	Freshwater	Widespread in northern hemisphere, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
Order Biddulphiales
236.	Biddulphiaceae	Biddulphia mobiliensis	Bailey	Brackish-watery		Single species	South Caspian
Order *Rhizosoleniales (=Soleniales)*
237.	*Rhizosoleniaceae (=Soleniaceae)*	Rhizosolenia calcar-avis	Ì. Schultze 1858	Marine-brackish	Widespread	Througho ut year	North, South, Middle Caspian	2000. Rakhmatulina
238.		R. fragilissima	Bergon 1903	Marine-brackish	Widespread	Througho ut year	North, South, Middle Caspian	1996. Rakhmatulina
239.		Proboscia alata (=R. alata Brightw.)	(Brightwell) Sündström 1986	Marine-brackish	Widespread	Simgle	Middle Caspian	1970. Babayev
Class Pennatophyceae
Order Fragilariales (=Araphales)
240.	Fragilariaceae	Fragilaria brevistriata	Grunow 1885	Brackish-freshwater	Cosmopolite	Often		2003. Phytoplankton...
241.		F. capucina var. capucina	Desmazieres 1925	Brackish-freshwater	Cosmopolite	Numerous	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
		F. capucina var. vaucheria	(Êützing) Lange Bertalot 1980	-	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
242.		F. construens var. subsalina	Hustedt 1925	Brackish-watery	Cosmopolite, in northern temperate zone		Lower Volga	2003. Phytoplankton...
243.		F. crotonensis	Kitton 1869	Brackish-freshwater	Widespread, cosmopolite (?)	Numerous	North Caspian, Lower Volga	1997. Rakhmatulina
244.		F. hungarica var. genuina	(Pantocek) Cleve- Euler				Lower Volga	2003. Phytoplankton...
245.		Fragilaria pinnata	Ehrenberg 1843	Brackish-freshwater	Cosmopolite	Rare	Lower Volga	2003. Phytoplankton...
246.		F. subsalina (=F. virescens var. subsalina Grun.)	(Grunow) Lange-Bertalot 1991	Brackish-watery	In northern temperate zone		Lower Volga	2003. Phytoplankton...
247.		F. virescens var. virescens	Ralfs 1843	Freshwater	Cosmopolite, in northern temperate zone		Lower Volga	2003. Phytoplankton...
248.		Synedra acus var. acus (=Fragillaria acus (Êütz.) Lange-Bertalot	Êützing 1844	Brackish-freshwater	Widespread, cosmopolite (?)	Often	North Caspian, Lower Volga	1998. Rakhmatulina
249.		S. acus var. angustissima	Grunow	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
		S. acus var. radians	(Êützing) Hustedt	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
250.		S. amphicephala (=F. capucina var. amphicephala (Grun.) Lange-Bertalot)	Êützing 1844	Brackish-freshwater	Among biofouling	Rare	North Caspian	1997. Rakhmatulina
251.		S. capitata (=S. dilatata (Bréb.) Lange-Bertalot)	Ehrenberg 1836	Brackish-freshwater	Widespread, cosmopolite	Rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
252.		S. pulchella	(Ralfs) Êützing 1844	Marine-brackish	Cosmopolite		Lower Volga	2003. Phytoplankton...
253.		S. tabulata var. tabulata (=Tabularia tabulata (Ag.) Snoeijs)	(Agardh) Êützing 1844	Marine	Cosmopolite	Rare	North Caspian	1998. Rakhmatulina
		S. tabulata var. parva	(Êützing) Grunow	Marine-brackish	Cosmopolite		Lower Volga	2003. Phytoplankton...
254.		S. ulna var. ulna (=Fragillaria ulna (Nitzsch) Lange-Bertalot)	(Nitzsch) Ehrenberg 1832	Brackish-freshwater	Cosmopolite	Often	North Caspian, Lower Volga	1998. Rakhmatulina
		S. ulna var. aegualis	(Êützing) Hustedt	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
		S. ulna var. amphirhynchus	(Ehrenberg) Grunow	Freshwater	Widespread, cosmopolite (?)			2003. Phytoplankton...
255.		Martyana martyi (=Opephora martyi Hérib.)	(Héribaud) Round 1990	Freshwater	In coastal areas with stagnant and flowing waters	Rare	North Caspian	1971. Levshakova
256.		Asterionella formosa (=A. gracillima (Hantzsch) Heiberg)	Hassall 1850	Freshwater	Widespread, cosmopolite (?)	Often, numerous	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
257.	Diatomaceae	Diatoma hyemalis	(Roth) Heiberg 1863	Freshwater	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
258.		D. tenuis (=D. elongatum (Lyngb.) Ag.)	Agardh 1812	Freshwater -brakish	Widespread, in northern temperate zone	Rare	North, Middle Caspian, Lower Volga	1996. Rakhmatulina
259.		D. vulgaris	Bory 1824	Freshwater -brakish	Widespread, cosmopolite (?)	Often	North, Middle Caspian, Lower Volga	1997. Rakhmatulina
260.	Lichmophoraceae	Lichmophora ehrengbergii	(Êützing) Gran	Brackish-watery	Widespread	Great numbers	South Caspian
261.	Thalassionemataceae	Thalassionema nitzschioides	(Grunow) Grunow ex Hustedt 1932	Marine	Widespread	Often	North, South, Middle Caspian	1971. Levshakova
262.	*Striatellaceae (=Tabellariaceae)*	Grammatophora marina	(Lyngbye) Êützing	Marine	Widespread		North, South Caspian	1971. Levshakova
263.		G. oceanica	Ehrenberg 1854	Brackish- watery	Widespread	Rare	Middle, South Caspian
Order Naviculales (=Raphales)
264.	Pinnulariaceae	Pinnularia gibba	Ehrenberg 1841	Freshwater	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
265.		P. interrupta var. interrupta (=P. mesolepta (Ehr.) W. Smith)	W. Smith 1853	Freshwater	Widespread, cosmopolite	Often	North Caspian	1998. Rakhmatulina
		P. interrupta var. minutissima	Hustedt	Freshwater	Widespread	Often	North Caspian	1997. Rakhmatulina
266.		Ð. microstauron	(Ehrenberg) Cleve 1891	Freshwater	Widespread, cosmopolite	Often	North Caspian	1997. Rakhmatulina
267.	Diploneidaceae	Diploneis smithii	(Brébisson) Cleve 1894	Marine-brackish	Widespread, cosmopolite	Often	North Caspian	2000. Rakhmatulina
268.		D. interrupta	(Êützing) Cleve 1894	Brackish-watery	Cosmopolite	Rare	North Caspian	1998. Rakhmatulina
269.		Diploneis dydyma	(Ehrenberg) Ehrenberg 1854	Brackish-marine	Cosmopolite	Rare	North Caspian	1997. Rakhmatulina
270.	Naviculaceae	Navicula bacillum	Ehrenberg 1843	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
271.		N. capitata var. capitata	Ehrenberg 1838	Freshwater -brakish	Cosmopolite		Lower Volga	2003. Phytoplankton...
		N. capitata var. hungarica (=N. hungarica Grun.)	(Grunow) Ross 1947	Freshwater -brakish	Widespread, cosmopolite (?)	Often	North Caspian, Lower Volga	1998. Rakhmatulina
272.		N. cincta	(Ehrenberg) Ralfs 1861	Freshwater -brakish	Cosmopolite	Often	North Caspian	1997. Rakhmatulina
273.		N. costulata	Grunow 1880	Freshwater -brakish	Cosmopolite		Lower Volga	2003. Phytoplankton...
274.		N. cryptocephala var. cryptocephala	Êützing 1844	Freshwater -brakish	Widespread, cosmopolite	Often	North Caspian, Iran, Lower Volga	1998. Rakhmatulina
		N. cryptocephala var. lata	Poretzky et Anissimowa	Freshwater -brakish	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
275.		N. cuspidata var. elongata	Skvet Meyer	Brackish- watery	Cosmopolite	Rare	North Caspian	1998. Rakhmatulina
276.		N. decussis	Oestrup 1910	Freshwater -brakish	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
277.		N. dicephala	(Ehrenberg) W. Smith	Freshwater	Widespread	Rare	North Caspian	1997. Rakhmatulina
278.		N. elginensis	(Gregory) Ralfs 1861	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
279.		N. exigua	(Gregory) Grunow 1880	Freshwater	Cosmopolite	Rare	Lower Volga	2003. Phytoplankton...
280.		N. gastrum	(Ehrenberg) Êützing 1844	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
281.		N. gregaria	Donkin 1861	Brackish- watery	Cosmopolite	Rare	North Caspian	1996. Rakhmatulina
282.		N. lanceolata var. tenella	(Agardh) Êützing	Brackish- freshwater	Cosmopolite	Often	North Caspian	1971. Levshakova
283.		N. laterostrata	Hustedt 1925	Freshwater -brakish	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
284.		N. menisculus	Schumann 1867	Freshwater -brakish	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
285.		N. minima	Grunow	Freshwater	Found in ponds	Rare	North Caspian	1971. Levshakova
286.		Navicula molestiformis	Hustedt 1949	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
287.		N. peregrina var. peregrina	(Ehrenberg) Êützing 1844	Brackish-watery	Cosmopolite	Rare	North Caspian, Lower Volga	1998. Rakhmatulina
		N. peregrina var. asiatica	Skv.	Brackish-watery	In temperate zone of Eurasia		Lower Volga	2003. Phytoplankton...
		N. peregrina var. minuta	Skv.	Brackish-watery	In temperate zone of Eurasia		Lower Volga	2003. Phytoplankton...
288.		N. placentula f. rostrata	A. Mayer	Freshwater	In temperate zone of Europe		Lower Volga	2003. Phytoplankton...
289.		N. platystoma	Ehrenberg 1838	Freshwater	Limited distribution, in Eurasia	Rare	North Caspian	1997. Rakhmatulina
290.		N. pseudanglica	Lange-Bertalot 1985	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
291.		N. pupula var. nyassensis	(O. Müller) Lange-Bertalot 1985	Freshwater	In tropical and subtropical zones		Lower Volga	2003. Phytoplankton...
		N. pupula var. rectangularis	(Gregory) Grunow	Freshwater -brakish	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
292.		N. radiosa	Êützing 1844	Freshwater -brakish	Widespread, cosmopolite	Often	North Caspian, Lower Volga	2000. Rakhmatulina
293.		N. recens	(Lange-Bertalot) Lange-Bertalot 1985	Brackish-freshwater	Widespread	Often	Lower Volga	2003. Phytoplankton...
294.		N. rhynchocephala var. rhynchocephala	Êützing 1844	Freshwater -brakish	Widespread, cosmopolite	Often	North Caspian, Lower Volga	1997. Rakhmatulina
		N. rhynchocephala var. omica	Gorjasch				Lower Volga	2003. Phytoplankton...
295.		N. stroemii	Hustedt 1931	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
296.		N. tripunctata (=N. gracilis Ehr.)	(O.F. Müller) Bory 1822	Freshwater -brakish	Widespread, cosmopolite	Often	North Caspian, Lower Volga	1996. Rakhmatulina
297.		N. veneta	Êützing 1844	Freshwater -brakish	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
298.		N. viridula var. rostellata	(Êützing) Cleve 1895	Freshwater	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
299.		Neidium affine	(Ehrenberg) Pfitzer 1871	Freshwater	Cosmopolite	Rare	Lower Volga	2003. Phytoplankton...
300.		Neidium ampliatum	(Ehrenberg) Krammer 1985	Freshwater	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
301.		N. dubium	(Ehrenberg) Cleve 1894	Freshwater -brakish	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
302		Caloneis amphisbaenà	(Bory) Cleve 1894	Freshwater -brakish	Cosmopolite	Rare	North Caspian	1996. Rakhmatulina
303.	Pleurosigmataceae	Gyrosigma acuminatum	(Êützing) Rabenhorst 1853	Freshwater	Widespread, cosmopolite	Often	North Caspian, Lower Volga	1998. Rakhmatulina
304.		G. attenuatum	(Êützing) Rabenhorst 1853	Freshwater -brackish	Widespread, cosmopolite	Often	North Caspian, Iran	1971. Levshakova
305.		G. balticum	(Ehrenberg) Rabenhorst 1853	Marinebrakish	Widespread, cosmopolite	Often	North Caspian	1997. Rakhmatulina
306.		G. fasciola	(Ehrenberg) Griffith et Henfrey 1856	Marinebrakish	Cosmopolite		Lower Volga	2003. Phytoplankton...
307.		G. scalpoides	(Rabenhorst) Cleve 1894	Freshwater	Widespread, cosmopolite	Rare	North Caspian	1996. Rakhmatulina
308.		G. spenceri	(Quekett) Griffith et Henfrey 1856	Brackish-watery	Widespread, cosmopolite	Often	North Caspian, Lower Volga	1998. Rakhmatulina
309.		G. strigilis	(W. Smith) Cleve 1894	Brackish	Widespread, cosmopolite	Often	North Caspian	1996. Rakhmatulina
310.		Pleurosigma elongatum	W. Smith 1852	Brackish-watery	Cosmopolite	Rare	Norh, South Caspian	1971. Levshakova
311.		P. salinarum	Grunow 1880	Brackish- watery	Cosmopolite	Rare	North Caspian	1971. Levshakova
312.	Stauroneidaceae	Stauroneis anceps	Ehrenberg 1843	Freshwater -brakish	Widespread	Rare	North Caspian, Lower Volga	1997. Rakhmatulina
313.	Mastagloiaceae	Mastogloia baltica	Grunow 1880	Brackish-watery	Limited distribution	Rare	North Caspian	1998. Rakhmatulina
314.		Ì. smithii	Thwaites 1856	Brackish- watery	Cosmopolite	Often	North Caspian	1998. Rakhmatulina
315.		Aneumastus tusculus (=Navicula tuscula Ehr.)	(Ehrenberg) Mann et Stickle	Freshwater	Widespread, cosmopolite	Rare	North Caspian	1998. Rakhmatulina
Order Achnanthales
316.	Achnànthaceae	Achnanthes brevipes	Agardh 1824	Brackish-marine	Cosmopolite	Often	North, South Caspian	1998. Rakhmatulina
317.		Achnanthes exilis	Êützing 1833	Freshwater	Cosmopolite (?)	Rare	Lower Volga	2003. Phytoplankton...
318.		A. inflata	(Êützing) Grunow 1880	Freshwater -brackish	Widespread	Rare	North Caspian	1998. Rakhmatulina
319.		A. lanceolata	(Brébisson) Grunow 1880	Freshwater	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
320.		A. minutissima var. minutissima	Êützing 1833	Freshwater	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
		A. minutissima var. affinis (=A. affinis Grun.)	(Grunow) Lange-Bertalot 1989	Freshwater -brackish	Widespread	Often	North Caspian	1998. Rakhmatulina
321.	Cocconeidaceae	Cocconeis pediculus	Ehrenberg 1838	Freshwater -brakish	Widespread in biofouling sites, cosmopolite	Often	North Caspian, Lower Volga	1997. Rakhmatulina
322.		C. placentula	Ehrenberg 1838	Freshwater -brakish	Widespread in biofouling sites, cosmopolite	Often	North Caspian, Lower Volga	1997. Rakhmatulina
324.		C. scutellum var. scutellum	Ehrenberg 1838	Marine	Among biofouling sites	Often	North, South Caspian	1997. Rakhmatulina
		C. scutellum var. minutissima	Grunow 1880	Marine-brackish	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
Order Eunotiaceales
325.	Eunotiaceae	Eunotia bilunaris	(Ehrenberg) Mills 1934	Freshwater	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
Order Cymbellales
326.	Rhoicospheniaceae	Rhoicosphenia abbreviata (=R. curvata (Êütz.) Grun.)	(Agardh) Lange-Bertalot 1980	Freshwater -brakish	Cosmopolite	Often	North, South Caspian, Lower Volga	1998. Rakhmatulina
327.	Cymbellaceae	Cymbella affinis (=C. tumidula Grun.)	Êützing 1844	Freshwater	Widespread in subarctic and temperate zones	Rare	North Caspian, Lower Volga	1996. Rakhmatulina
328.		C. cistula	(Ehrenberg) Kirchner 1878	Freshwater	Widespread, cosmopolite	Often	North Caspian, Lower Volga	1998. Rakhmatulina
329.		C. cymbiformis	Agardh 1830	Freshwater	Widespread in arctic and temperate zones	Rare	North Caspian	1971. Levshakova
330.		C. elginensis	Krammer 1981	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
331.		C. helvetica	Êützing 1844	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
332.		Cymbella lanceolata	Agardh 1830	Freshwater -brackish	Widespread in temperate zone, cosmopolite (?)	Often	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
333.		C. mesiana	Cholnoky 1955	Freshwater	Cosmopolite, widespread in arctic zone		Lower Volga	2003. Phytoplankton...
334.		C. parva	(W. Smith) Kirchner 1878	Freshwater	Widespread in temperate and subtropical zones	Often	North Caspian	2000. Rakhmatulina
335.		C. prostrata	(Berkeley) Cleve 1894	Freshwater -brackish	Widespread, cosmopolite	Often	North Caspian, Iran	1996. Rakhmatulina
336.		C. pusilla	Grunow 1875	Brackish-watery	Widespread, cosmopolite (?)	Rare	North Caspian	1997 Rakhamtulina
337.		C. silesiaca	Bleisch 1864	Freshwater	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
338.		C. tumida	(Brébisson) Van Heurck 1880	Freshwater	Widespread in temperate and tropic zones		North Caspian	1997. Rakhamtulina
339.		C. tumidula	Grunow 1875	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
340.	Gomphonemataceae	Gomphonema acuminatum var. coronatum	(Ehrenberg) W. Smith	Freshwater	Ñosmopolite (?)		Lower Volga	2003. Phytoplankton...
341.		G. augur	Ehrenberg 1840	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
342.		G. clavatum	Ehrenberg 1832	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
343.		G. lanceolatum var. capitatum	Ehrenberg	Freshwater	Widespread	Rare	North Caspian	1997. Rakhmatulina
344.		G. olivaceum (=Gomphoneis olivacea (Horn.) Dawson ex Ross et Sims)	(Hornemann) Brébisson 1838	Freshwater -brackish	Widespread, cosmopolite	Often	North Caspian, Lower Volga	1997. Rakhmatulina
345.		G. parvulum var. parvulum	(Êützing) Êützing 1849	Freshwater -brakish	Widespread, cosmopolite	Often	North Caspian, Lower Volga	1997. Rakhmatulina
		G. parvulum var. subellipticum	Cleve	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
346.		G. truncatum (=G. turgida (Ehr.) Êütz.)	Ehrenberg 1832	Brackish-freshwater	Widespread, cosmopolite	Often	North Caspian, Lower Volga	1998. Rakhmatulina
Order Thalassiphysales
347.	Catenulaceae	Amphora coffeaeformis	Agardh 1844	Brackish-watery	Widespread, cosmopolite	Often	North Caspian	2000. Rakhmatulina
348.		A. commutata	Grunow 1880	Freshwater -brackish	Widespread, cosmopolite (?)	Often	North Caspian	1998. Rakhmatulina
349.		A. ovalis	(Êützing) Êützing 1844	Freshwater -brackish	Widespread, cosmopolite	Often	North Caspian, Iran, Lower Volga	2000. Rakhmatulina
350.		A. pediculus	(Êützing) Grunow 1880	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
351.		A. veneta	Êützing 1844	Freshwater	Cosmopolite	Single, rare	Lower Volga	2003. Phytoplankton...
Order Rhopalodiales
352.	Rhopalodiaceae	Rhopalodia gibba (=R. gibba var. ventricosa (Êütz.) H. et M. Peragallo)	(Ehrenberg) O. Müller 1895	Freshwater -brackish	Widespread, cosmopolite	Often	Norh Caspian, Lower Volga	1998. Rakhmatulina
353.		R. musculus	(Êützing ) O. Müller 1899	Marine	Cosmopolite	Rare	Norh Caspian	1971. Levshakova
354.	Epithemiaceae	Epithemia adnata	(Êützing) Brébisson	Freshwater	Ñosmopolite (?)		Lower Volga	2003. Phytoplankton...
355.		E. argus (=E. ocellata (Ehr.) Êütz.)	(Ehrenberg) Êützing 1844	Freshwater	Widespread, cosmopolite	Often	North Caspian, Lower Volga	1997. Rakhmatulina
356.		E. sorex	Êützing 1844	Freshwater -brackish	Widespread, cosmopolite	Often	North Caspian, Lower Volga	2000. Rakhmatulina
357.		E. turgida	(Ehrenberg) Êützing 1844	Freshwater -brackish	Widespread, cosmopolite	Rare	North Caspian, Lower Volga	1997. Rakhmatulina
Order Bacillariales
358.	*Bacillariaceae (=Nitzschiaceae)*	Bacillaria paradoxa (=B. paxillifer (Muel.) Hendey)	Gmelin 1791	Freshwater -brakish	Widespread, cosmopolite	Rare	North, Middle Caspian	1968. Proshkina-Lavrenko, Makarova
359.		B. socialis var. baltica	Grunow	Brackish-watery	Widespread	Rare	North Caspian, Iran	1968. Proshkina-Lavrenko, Makarova
360.		Cylindrotheca closterium (=Nitzschia closterium (Ehr.) W. Smith)	Reiman et Levin 1964	Marinebrakish	Cosmopolite	Rare	North, Middle, South Caspian, Lower Volga	1997. Rakhmatulina
361.		Hantzschia amphioxys f. amphioxys	(Ehrenberg) Grunow 1880	Freshwater -brackish	Cosmopolite		Lower Volga	2003. Phytoplankton...
		Hantzschia amphioxys f. capitata	O. Müller	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
362.		Nitzschia acicularis	(Êützing ) W. Smith 1853	Freshwater	Widespread, cosmopolite	Often	All over the Caspian, Lower Volga	1997. Rakhmatulina
363.		N. angustata var. angustata	(W. Smith) Grunow 1880	Freshwater	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
		N. angustata var. acuta	(W. Smith) Grunow 1880	Freshwater -brakish	Widespread	Rare	North Caspian	1997. Rakhmatulina
364.		N. aquaea	Wisl. et Poretzky	Brackish-freshwater	Limited, in Europe		Lower Volga	2003. Phytoplankton...
365.		N. brevissima (=N. parvula Lewis)	Grunow 1881	Brackish-watery	In river estuaries, cosmopolite	Often	North Caspian	1997. Rakhmatulina
366.		N. coarctata (=N. punctata f. coarctata (Grun.) Hust.)	Grunow 1878	Marine-brackish	Widespread, cosmopolite	Often	North Caspian	1997. Rakhmatulina
367.		N. communis	Rabenhorst 1860	Freshwater -brakish	Widespread, cosmopolite	Often	North Caspian	1997. Rakhmatulina
368.		N. debilis (=N. tryblionella var. debilis (Arnott) Hust.)	(Arnott) Grunow 1880	Freshwater -brakish	Widespread, cosmopolite	Often	North Caspian	2000. Rakhmatulina
369.		N. dissipata	(Êützing) Grunow 1862	Freshwater	Widespread, cosmopolite	Rare	North Caspian, Lower Volga	1997. Rakhmatulina
370.		N. distans	Gregory	Brackish-marine	Limited	Rare	North Caspian	1997. Rakhmatulina
371.		N. frustulum	(Êützing) Grunow 1880	Freshwater -brakish	Cosmopolite		Lower Volga	2003. Phytoplankton...
372.		N. gracilis	Hantzsch 1860	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
373.		N. hantzschiana	Rabenhorst 1860	Freshwater -brakish	Cosmopolite (?)	Rare	North Caspian	1997. Rakhmatulina
374.		N. homburgiensis (=N. thermalis (Êütz.) Auerswald)	Lange-Bertalot 1978	Freshwater -brakish	Widespread in northern hemisphere		North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
375.		N. hungarica	Grunow 1862	Brackish-watery	Widespread, cosmopolite	Often	North Caspian	1997. Rakhmatulina
376.		N. inconspicua	Grunow 1862	Brackish- watery	Cosmopolite		Lower Volga	2003. Phytoplankton...
377.		Nitzschia intermedia	Hantzsch ex Cleve et Grunow 1880	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
378.		N. linearis	(Agardh) W. Smith 1853	Freshwater	Widespread, cosmopolite	Rare	North Caspian, Lower Volga	1997. Rakhmatulina
379.		N. lorenziana	Grunow 1880	Brackish-watery	Often, cosmopolite	Rare	North Caspian	1997. Rakhmatulina
380.		N. palea var. palea	(Êützing) W. Smith 1856	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
		N. palea var. debilis	(Êützing) Grunow 1880	Freshwater	In temperate and subarctic zones		Lower Volga	2003. Phytoplankton...
		N. palea var. capitata	Wisl. et Poretzky	Brackish-freshwater	Cosmopolite (?), in Europe		Lower Volga	2003. Phytoplankton...
		N. palea var. tenuirostris	Grunow	Freshwater	Limited, in Eurasia		Lower Volga	2003. Phytoplankton...
381.		N. paleacea	(Grunow) Grunow 1881	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
382.		N. pusilla	Grunow 1862 emend. Lange-Bertalot 1976	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
383.		N. recta	Hantzsch 18611879	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
384.		N. reversa (=N. longissima var. reversa Grun.)	W. Smith 1853	Marine-brackish	Cosmopolite	Rare, single species	North, Middle, South Caspian, Lower Volga	1997. Rakhmatulina
385.		N. sigma	(Êützing) W. Smith 1853	Marine-brackish	Widespread, cosmopolite	Often	North, South Caspian	1997. Rakhmatulina
386.		N. sigmoidea	(Nitzsch) W. Smith 1853	Freshwater -brakish	Widespread, cosmopolite	Often	North Caspian	2000. Rakhmatulina
387.		N. sublinearis	Hustedt 1930	Freshwater	In temperate and subarctic zones		Lower Volga	2003. Phytoplankton...
388.		N. subtilis	Grunow 1880	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
389.		N. tenuirostris	Mereshkovsky 1902	Brackish		Often	North, Middle, South Caspian	1970. Babayev
390.		N. vermicularis	(Êützing) Hantzsch 1860	Freshwater -brakish	Widespread, cosmopolite (?)	Rare	North Caspian, Lower Volga	1997. Rakhmatulina
391.		N. vitrea	Norman 1861	Brackish-watery	Widespread, cosmopolite	Rare	North Caspian	1997. Rakhmatulina
Order Surirellales
392.	Entomoneidaceae	Entomoneis paludosa (=Amphiprora paludosa W. Smith)	(W. Smith) Reimer 1975	Brackish-marine	Widespread, cosmopolite	Often	North Caspian	2000. Rakhmatulina
393.	Surirellaceae	Surirella angustata	Êützing	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
394.		S. brebissonii var. kuetzingii	Krammer et Lange-Bertalot 1987	Freshwater -brakish	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
395.		S. linearis	W. Smith 1853	Freshwater	Widespread, cosmopolite	Often	North Caspian	1997. Rakhmatulina
396.		S. minuta	Brébisson 1849	Freshwater -brakish	Cosmopolite	Often	Lower Volga	2003. Phytoplankton...
397.		S. ovalis	Brébisson 1838	Brackish-watery	Widespread, cosmopolite	Rare	North Caspian	1997. Rakhmatulina
398.		Campylodiscus araliensis	I. Kisselev	Brackish-watery	Spread limitedly	Rare	North Caspian	1971. Levshakova
399.		C. bicostatus (=C. clypeus var. bicostatus (W. Smith) Hust.)	W. Smith 1854	Brackish-watery	Spread limitedly, cosmopolite (?)	Often	North, Middle Caspian	1971. Levshakova
400.		C. clypeus	Ehrenberg 1840	Brackish-watery	Cosmopolite	Often	North, South Caspian, Iran	2000. Rakhmatulina
401.		C. daemelianus	Grunow	Brackish-watery	Spread limitedly		North, Middle, South Caspian	1971. Levshakova
402.		C. echeneis	Ehrenberg 1840	Marine-brackish	Cosmopolite		North, Middle, South Caspian	1971. Levshakova
403.		Cymatopleura elliptica	(Brébisson) W. Smith 1851	Brackish-freshwater	Widespread, cosmopolite	Rare	Norh Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
404.		C. solea	(Brébisson) W. Smith 1851	Freshwater	Widespread, cosmopolite	Often	North Caspian, Lower Volga	1997. Rakhmatulina
Division Xanthophyta
Class Heterococcophyceae
Order Mischococcales (=Tribonematales; =Heterococcocales)
405.	Pleurochloridaceae	Goniochloris fallax	Fott	Freshwater	In temperate zone, cosmopolite (?)	Single species	Lower Volga	2003. Phytoplankton...
406.		G. laevis	Pascher	Freshwater	Cosmopolite (?), in Eurasia		Lower Volga	2003. Phytoplankton...
407.		Goniochloris mutica	(A. Braun) Fott	Freshwater	Cosmopolite	Single species	Lower Volga	2003. Phytoplankton...
408.		G. parvula	Pascher	Brackish-freshwater	Spread limitedly, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
409.		G. smithii	(Bourrelly) Fott	Freshwater	In temperate zone of Eurasia, cosmopolite (?)	Single species	Lower Volga	2003. Phytoplankton...
410.		G. tripus	Pascher	Freshwater	Spread limitedly, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
411.	Centritractaceae	Bumilleriopsis brevis	(Gerneck) Printz 1914	Freshwater	In Eurasia, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
412.		Centritractus belonophorus	Lemmermann	Freshwater	Widespread, cosmopolite (?)	Single species	Lower Volga	2003. Phytoplankton...
413.		C. brunneus	Fott	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
414.		C. capillifer	Pascher	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
415.	*Ophiocytiaceae (=Chlorotheciaceae)*	Ophiocytium capitatum	Wolle	Freshwater	In northern temperate zone, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
416.		O. cochleare	(Eichwald) A. Braun 1855	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
417.		O. variabile	Bochlin	Freshwater	In northern temperate zone, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
Division Cryptophyta
Class Cryptomonadophyceae
Order Cryptomonadales
418.	Cryptomonadaceae	Chroomonas acuta	Uterm.	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
419.		Cryptomonas caudata	Schiller	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
420.		C. curvata	Ehrenberg	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
421.		C. erosa	Ehrenberg 1832	Freshwater -brackish	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
422.		C. gracilis	Skuja	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
423.		Cryptomonas marssonii	Skuja 1948	Freshwater -brackish	Widespread, cosmopolite (?)	Common	Lower Volga	2003. Phytoplankton...
424.		C. obovata	Skuja	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
425.		C. ovata	Ehrenberg 1838	Freshwater -brackish	Widespread, cosmopolite (?)	Common	Lower Volga	2003. Phytoplankton...
426.		C. reflexa	(Marsson) Skuja	Freshwater -brackish	In temperate zone, in Europe	Common	Lower Volga	2003. Phytoplankton...
427.		C. salina	Wisl.	Brackish	In Europe		Lower Volga	2003. Phytoplankton...
428.		Rhodomonas lacustris var. lacustris (=R. pusilla (Bachm.) Javorn.)	Pascher et Ruttner 1913	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
		R. lacustris var. nannoplanktonica (=R. minuta var. nannoplanktonica Skuja)	(Skuja) Javornicky 1976	Freshwater	In temperate zone, in Europe		Lower Volga	2003. Phytoplankton...
429.		R. lens	Pascher et Ruttnner 1913	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
Division Dinophyta / Dinoflagellata (=Pyrrophyta)
Class Desmophyceae
Order Prorocentrales
430.	Prorocentraceae	Exuviaella caspiña	I. Kisselev 1949	Brackish-watery	Caspian endemic		North Caspian	1968. Proshkina-Lavrenko, Makarova
431.		E. ostenfeldii	Ostenfeld 1901	Brackish- watery			North Caspian	1971. Levshakova
432.		Prorocentrum cordata (=Exuviaella cordata Ostf.)	(Ostenfeld) Dodge 1975	Marine-brackish		Often	North, Middle, South Caspian, Iran	1997. Rakhmatulina
433.		P. lima (=E. marina Cienkovski)	(Ehrenberg) Dodge 1975	Marine	Limited distribution		North, South Caspian	1971. Levshakova
434.		P. micans	Ehrenberg 1833	Marine	In northern and southern seas	Single species	North Caspian	1971. Levshakova
435.		P. obtusum	Ostenfeld 1908	Brackish-watery	In russian southern seas	Rare	North, Middle, South Caspian	1997. Rakhmatulina
436.		P. proximum	Makarova 1967	Marine	In northern and southern seas	Often	North, South Caspian	1968. Proshkina Lavrenko, Makarova
437.		Prorocentrum scutellum	Schröder 1900	Marine	In northern and southern seas	Often	North, Middle, South Caspian, Iran	1970. Babayev
Order Gymnodiniales
438.	Gymnodiniaceae	Gymnodinium lacustre	Schiller 1933	Brackish-freshwater	In seas	Rare	North Caspian	1971. Levshakova
439.		G. variabile	Herdman 1924	Marine	In seas	Rare	North Caspian, Iran	1998. Rakhmatulina
440.		Heterocapsa rotundata (=Massartia rotundata Schiller)	(Lohmann) Hansen 1995	Marine		Often	Middle, South Caspian
Order Peridiniales
441.	Glenodiniaceae	Glenodinium behningii	(Lindemann) I. Kisselev 1950	Brackish-watery	Oceanic, widespread	Rare	North, Middle, South Caspian	1971. Levshakova
442.		G. caspicum	(Ostenfeld) Schiller 1931-1937	Brackish-watery	In russian southern seas	Rare	North, Middle, South Caspian	1997. Rakhmatulina
443.		G. lenticula f. assimetrica	(Mangin) Schiller	Brackish-watery	Oceanic, widespread	Rare	North, Middle, South Caspian	1971. Levshakova
444.		G. penardii f. major	Lind.		Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
445.		G. pilula	(Ostenfeld) Schiller 1937	Brackish-watery	Southern seas	Single species	Norht, Middle, South Caspian	1971. Levshakova
446.	Peridiniaceae	Sphaerodinium cinctum	(Ehrenberg) Wołoszyńska 1916	Freshwater	Limited distribution	Rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
447.		Pyrophacus horologicum	Stein 1883	Marine	Diverse in seas	Rare	Northern, North Caspian	1968. Proshkina-Lavrenko, Makarova
448.		Glenodiniopsis penardii (=Glenodinium penardii Lemm.)	(Lemmermann) Bourelly 1968	Freshwater	In Europe; in plankton, rivers and ponds	Rare	North, South, Middle Caspian, Iran, Lower Volga	1968. Proshkina-Lavrenko, Makarova; 2003. Phytoplankton...
449.		Preperidinium meunieri (=Glenodinium lenticula f. minor (Pauls.) Schiller)	(Pavillard) Elbrächter, 1993	Brackish-watery	Oceanic, widespread	Rare	North, Middle, South Caspian, Iran	1998. Rakhmatulina
450.		Peridiniella danicum (=Glenodinium danicum Pauls.)	(Paulsen) Okolodkov et Dodge 1995	Marine	Seas of norhtern hemisphere	Rare	North, South, Middle Caspian, Iran	1968. Proshkina-Lavrenko, Makarova
451.		Peridiniopsis berolinense	(Lemmermann) Bourrelly 1968	Freshwater	In norhtern hemisphere, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
452.		P. charkowiensis	(Matvienko) Bourrelly 1968	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
453.		P. elpatiewskyi	(Ostenfeld) Bourrelly 1968	Freshwater	In Eurasia, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
454.		P. oculatum	(Stein) Bourrelly 1968	Freshwater	In temperate zone, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
455.		P. penardiforme	(Lindemann) Bourrelly 1968	Freshwater	In temperate zone, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
456.		P. polonicum	(Wołoszynska) Bourrelly 1968	Freshwater	In temperate zone, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
457.		P. quadridens	(Stein) Bourrelly 1968	Freshwater	In temperate zone, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
458.		P. rotunda (=Glenodinium rotundum (Leb.) Schiller, =Oblea rotunda (Leb.) Balech ex Sournia)	Lebour 1922	Brackish-watery	In Europe		North Caspian	1971. Levshakova
459.		Peridinium aciculiferum	Lemmermann 1900	Brackish-freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
460.		P. cinctum	(O.F. Müller) Ehrenberg 1838	Freshwater -brackish	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
461.		P. lomnickii	Wołoszynska 1916	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
462.		P. umbonatum var. umbonatum (=P. inconspicuum Lemm.)	Stein 1883	Freshwater	Cosmopolite	Often	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
		P. umbonatum var. goslaviense	(Wołoszynska) Popovsky et Pfiester 1986	Freshwater	Widespread		Lower Volga	2003. Phytoplankton...
463.		Protoperidinium achromaticum (=Peridinium achromaticum Lev.)	(Levander) Balech 1974	Marine	Widespread in Eurasien	Rare	North, Middle, South Caspian	1968. Proshkina-Lavrenko, Makarova
464.		Scrippsiella trochoidea (=Glenodinium trochoideum Stein, =Peridinium trochoideum (Stein) Lemm.)	(Stein) Loeblich III 1976	Marine	In northern and southern seas	Rare	North, Middle, South Caspian	1997. Rakhmatulina
465.	Dinosphaeraceae	Diplopsalis acuta (=Peridinium latum Pauls.)	(Apstein) Entz 1904	Brackish-freshwater	In northern and southern seas	Rare	North, Middle, South Caspian	1997. Rakhmatulina
466.		D. lenticula (=Glenodinium lenticula (Bergh) Schiller)	Bergh 1882	Brackish-watery	Oceanic, widespread	Rare	North, Middle, South Caspian	1968. Proshkina-Lavrenko, Makarova
467.	Ceratiaceae	Ceratium furcoides	(Levander) Langhans 1925	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
468.		C. hirundinella f. hirundinella	(O.F. Müller) Dujardin 1841	Freshwater -brakish	Widespread in temperate zone, cosmopolite (?)	Single species	North, South Caspian, Lower Volga	2003. Phytoplankton...
		C. hirundinella f. piburgense	(Zederbauer) Bachmann 1911	Freshwater	In temperate zone		Lower Volga	2003. Phytoplankton...
469.	Gonyaulacaceae	Gonyaulax digitalis	(Pouchet) Kofoid 1911	Marine	Widespread in southern seas		North, South, Middle Caspian	1968. Proshkina-Lavrenko, Makarova
470.		G. spinifera	(Claparède et Lachmann) Diesing 1866	Marine	Widespread	Often	North, Middle, South Caspian, Iran	1970. Babayev
471.		Lingulodinium polyedrum (=Gonyaulax polyedra Stein)	(Stein) Dodge 1989	Marine	Widespread	Often	North, Middle, South Caspian	1998. Rakhmatulina
Order Ebriales
472.	Ebriaceae	Ebria tripartita	(Schumann) Lemmermann 1900	Brackish-marine			Middle Caspian	1970. Babayev
Division Euglenophyta
Class Euglenophyceae
Order Euglenales
473.	Euglenaceae	Euglena acus	Ehrenberg 1830	Freshwater	Widespread, cosmopolite	Rare	North Caspian, Iran, Lower Volga	1997. Rakhmatulina
474.		E. anabaena	Mainx				Lower Volga	2003. Phytoplankton...
475.		Euglena caudata var. caudata	Hübner	Freshwater	Widespread in norhtern hemisphere	Rare	Lower Volga	2003. Phytoplankton...
		E. caudata var. minor	Deflandre	Freshwater			Lower Volga	2003. Phytoplankton...
476.		E. clara	Skuja	Freshwater	In norhtern zone of Eurasia		Lower Volga	2003. Phytoplankton...
477.		E. deses f. klebsii	(Lemmermann) Popova	Freshwater -brackish	In norhtern hemisphere, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
478.		E. gracilis	Klebs	Freshwater -brackish	In norhtern hemisphere, cosmopolite (?)	Rare	Lower Volga	2003. Phytoplankton...
479.		E. hemichromata	Skuja	Freshwater	In Eurasia, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
480.		E. oxyuris	Schmarda	Freshwater -brackish	Widespread in norhtern hemisphere		Lower Volga	2003. Phytoplankton...
481.		E. spathirhyncha	Skuja	Freshwater	In Eurasia, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
482.		E. tripteris	(Dujardin) Klebs	Freshwater -brackish	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
483.		E. viridis	Ehrenberg	Freshwater	Widespread, cosmopolite (?)	Often	North Caspian, Iran, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
484.		Lepocinclis fusiformis	(Carter) Lemmermann	Freshwater -brackish	Widespread, cosmopolite	Common	Lower Volga	2003. Phytoplankton...
485.		L. ovum	(Ehrenberg) Lemmermann	Freshwater -brackish	Widespread, cosmopolite		Lower Volga	2003. Phytoplankton...
486.		Phacus caudatus	Hübner	Freshwater -brackish	Widespread, cosmopolite	Not rare	Lower Volga	2003. Phytoplankton...
487.		P. globosus	Pochmann				Lower Volga	2003. Phytoplankton...
488.		P. longicauda	(Ehrenberg) Dujardin	Freshwater	Widespread, cosmopolite		Lower Volga	2003. Phytoplankton...
489.		P. megalopsis	Pochmann	Freshwater			Lower Volga	2003. Phytoplankton...
490.		P. mirabilis	Pochmann				Lower Volga	2003. Phytoplankton...
491.		P. orbicularis	Hübner	Freshwater	Widespread, cosmopolite		Lower Volga	2003. Phytoplankton...
492.		Phacus oscillans	Klebs	Freshwater	In Eurasia, cosmopolite (?)	Not rare	Lower Volga	2003. Phytoplankton...
493.		P. parvulus var. parvulus	Klebs	Freshwater -brackish	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
		P. parvulus var. pusillus	(Lemmermann) Popova	Freshwater	In norhtern hemisphere, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
494.		P. pleuronectes	(Ehrenberg) Dujardin	Freshwater	Cosmopolite	Not rare	Lower Volga	2003. Phytoplankton...
495.		Monomorphina pyrum (=P. pyrum (Ehr.) Stein)	(Ehrenberg) Mereschkowsky	Freshwater -brackish	Widespread, cosmopolite		Lower Volga	2003. Phytoplankton...
496.		Strombomonas urceolata	(Stokes) Deflandre	Freshwater	In Eurasia, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
497.	Trachelomonadaceae	Trachelomonas abrupta	Swirenko	Freshwater	Cosmopolite	Not rare	Lower Volga	2003. Phytoplankton...
498.		T. cylindrica	Ehrenberg 1833 sec. Playfair 1915	Freshwater	Widespread, cosmopolite	Rare	Lower Volga	2003. Phytoplankton...
499.		T. hispida var. hispida	(Perty) Stein 1878 emend. Deflandre 1926	Freshwater, ubiquist	Widespread, cosmopolite	Common	Lower Volga	2003. Phytoplankton...
		T. hispida var. granulata	Playfair 1915	Freshwater	In temperate zone, cosmopolite (?)	Rare	Lower Volga	2003. Phytoplankton...
500.		T. intermedia	Dangeard 1901	Freshwater -brakish	Widespread, cosmopolite	Common	Lower Volga	2003. Phytoplankton...
501.		T. oblonga var. australica	Playfair 1915	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
		T. oblonga var. punctata (=T. oblonga f. punctata Popova)	Lemmermann	Freshwater	Widespread, cosmopolite (?)	Not rare	Lower Volga	2003. Phytoplankton...
502.		T. planctonica	Swirenko	Freshwater	In Eurasia, cosmopolite (?)	Not rare	Lower Volga	2003. Phytoplankton...
503.		T. rotunda	Swirenko 1914	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
504.		T. similis	Stokes	Freshwater	Widespread, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
505.		T. volvocina var. volvocina	Ehrenberg 1833	Freshwater -brackish	Widespread, cosmopolite	Very often	Lower Volga	2003. Phytoplankton...
		Trachelomonas volvocina var. subglobosa	Lemmermann 1913 emend. Swirenko 1915	Freshwater	Widespread in Eurasia, cosmopolite (?)	Common	Lower Volga	2003. Phytoplankton...
506.		T. volvocinopsis	Swirenko 1914	Freshwater	Widespread, cosmopolite (?)	Not common	Lower Volga	2003. Phytoplankton...
507.	Eutreptiaceae	Eutreptia lanowii	Steuer	Freshwater -brackish	In Europe		Middle, South Caspian	1970. Babayev
Division Chlorophyta
Class Prasinophyceae
Order Polyblepharidales
508.	Polyblepharidaceae	Nephroselmis minuta	(Carter) Butcher 1959				Lower Volga	2003. Phytoplankton...
Order Tetraselmidales
509.	Tetraselmidaceae	Tetraselmis arnoldii	(Proshkina-Lavrenko) Norris et al. 1980	Brackish	In Europe		Lower Volga	2003. Phytoplankton...
510.		T. contracta	(Carter) Butcher 1959	Brackish-freshwater	In Europe		Lower Volga	2003. Phytoplankton...
511.		T. cordiformis	(Carter) Stein 1878	Freshwater -brackish	In northern temperate zone		Lower Volga	2003. Phytoplankton...
Class Chlamydophyceae
Order Chlamydomonadales
512.	Chlamydomonadaceae	Chlamydomonas angulosa	Dill 1895				Lower Volga	2003. Phytoplankton...
513.		C. asymmetrica	Korschikoff 1927	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
514.		C. debaryana var. atactogama	(Korschikoff) Gerloff 1940	Freshwater	Widespread		Lower Volga	2003. Phytoplankton...
515.		C. elliptica	Korschikoff 1927	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
516.		C. globosa	Snow 1902	Freshwater -brackish	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
517.		C. incerta	Pascher 1927	Freshwater-brackish (?)	Widespread		Lower Volga	2003. Phytoplankton...
518.		C. media	Klebs 1896	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
519.		C. monadina	Stein 1878	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
520.		C. noctigama	Korschikoff 1927	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
521.		C. pertyi	Goroschankin 1891	Freshwater	Widespread		Lower Volga	2003. Phytoplankton...
522.		Chlamydomonas proboscigera var. proboscigera	Korschikoff in Pascher 1927	Freshwater	In Eurasia		Lower Volga	2003. Phytoplankton...
		C. proboscigera var. charkowiensis	(Korschikoff) Péterfi 1968	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
523.		C. pseudopertusa	Ettl 1965	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
524.		C. reinhardtii	Dangeard 1888	Freshwater	Cosmopolite		Lower Volga	2003. Phytoplankton...
525.		C. similis	Korschikoff 1938	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
526.		C. simplex	Pascher 1927	Freshwater	Widespread		Lower Volga	2003. Phytoplankton...
527.		C. snowiae	Printz 1914	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
528.		Chloromonas vulgaris	(Anachin) Gerloff et Ettl 1970	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
529.		Carteria globosa	Korschikoff 1927	Freshwater	In northern cold waters, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
530.		Gloeomonas mucosa	(Korschikoff) Ettl 1958	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
531.		Lobomonas stellata	Chodat 1921	Freshwater	In Europe		Lower Volga	2003. Phytoplankton...
532.		Sphaerellopsis gloeocystiformis	(Dill) Gerloff 1940	Freshwater	In Europe	Often	Lower Volga	2003. Phytoplankton...
533.	Haematococcaceae	Chlorogonium acutiforme	Bourrelly 1951	Freshwater	In Europe	Single	Lower Volga	2003. Phytoplankton...
534.		C. minimum	Playfair 1918	Freshwater	Widespread		Lower Volga	2003. Phytoplankton...
535.	Phacotaceae	Pteromonas aculeata	Lemmermann 1900	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
536.		P. angulosa	(Carter) Lemmermann 1900	Freshwater	In Europe, cosmopolite (?)		Lower Volga	2003. Phytoplankton...
537.		P. robusta	Korschikoff 1939				Lower Volga	2003. Phytoplankton...
538.		P. torta	Korschikoff	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
Order Volvocales
539.	Volvocaceae	Gonium pectorale	O.F. Müller 1773	Brackish-freshwater	Widespread, cosmopolite (?)		North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
540.		G. sociale	(Dujardin) Warming 1876	Brackish- freshwater	Widespread		North Caspian	1971. Levshakova
541.		Pandorina charkowiensis	Korschikoff 1923	Freshwater	Widespread (?)		Lower Volga	2003. Phytoplankton...
542.		Pandorina morum	(O.F. Müller) Bory 1824	Brackish-freshwater	In Europe, cosmopolite (?)		North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
543.		Eudorina elegans	Ehrenberg 1831	Brackish-freshwater	Widespread, cosmopolite		North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
Class Chlorophyceae
Order Dunaliellales
544.	Dunaliellaceae	Spermatozopsis exsultans	Korschikoff 1913	Freshwater	In norhtern temperate zone		Lower Volga	2003. Phytoplankton...
Order Chlorococcales
545.		Dactylococcopsis acicularis	Lemmermann 1900	Freshwater	Widespread, cosmopolite (?)	Rare	North Caspian, Volga river estuary and lower part	1992. Nurieva, Akhundova; 2003. Phytoplankton...
546.		D. fascicularis	Lemmermann 1898	Freshwater	Common	Rare, single	North Caspian, near Volga river estuary	1992. Nurieva, Akhundova
547.	Characiaceae	Ankyra ancora	(G. M. Smith) Fott 1957	Freshwater	In northern temperate zone	Very rare	Lower Volga	2003. Phytoplankton...
548.		A. judayi	(G. M. Smith) Fott 1957	Freshwater	In norhtern hemisphere, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
549.		A. viridis	(Massjuk) Tzarenko 1990	Freshwater	In Europe	Very rare	Lower Volga	2003. Phytoplankton...
550.		Korschikoffiella limnetica	(Lemmermann) Silva 1959	Freshwater	In norhtern hemisphere	Very rare	Lower Volga	2003. Phytoplankton...
551.		Schroederia robusta	Korschikoff 1953	Freshwater	In Eurasia, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
552.		S. setigera	(Schröder) Lemmermann 1898	Freshwater	Widespread, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
553.		S. spiralis	(Printz) Korschikoff 1953	Freshwater	In Eurasia, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
554.	Golenkiniaceae	Golenkinia radiata	Chodat 1894	Freshwater	Cosmopolite (?)	Very rare	Lower Volga	2003. Phytoplankton...
555.		Polyedriopsis spinulosa	(Schmidle) Schmidle 1899	Freshwater	Widespread, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
556.	Chlorococcaceae	Emergosphaeria superficalis	Mill	Freshwater	Limited distribution	Rare	North Caspian	1971. Levshakova
557.		Chroderia setigera	(Schröder) Lemmermann	Freshwater	Widespread	Rare	North Caspian
Order Chlorellales
558.	Treubariaceae	Desmatractum indutum	(Geitler) Pascher 1930	Freshwater	In norhtern hemisphere, cosmopolite (?)	Very rare	Lower Volga	2003. Phytoplankton...
559.		Treubaria euryacantha	(Schmidle) Korschikoff 1953	Freshwater	In Eurasia, cosmopolite (?)	Very rare	Lower Volga	2003. Phytoplankton...
560.		T. planctonica	(G. M. Smith) Korschikoff	Freshwater	In Eurasia, cosmopolite (?)	Very rare, single	Lower Volga	2003. Phytoplankton...
561.		T. schmidlei (=T. varia Tiff. et Ahlstr.)	(Schröder) Fott et Kovač 1975	Freshwater	Widespread	Rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
562.		T. triappendiculata	Bern. 1908	Freshwater	In norhtern hemisphere, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
563.	*Palmellaceae (=Sphaerocystidaceae)*	Planctococcus sphaerocystiformis (=Gloeococcus ?)	Korschikoff	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
564.		Sphaerocystis planctonica	(Korschikoff) Bourrelly 1966	Freshwater	In Eurasia, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
565.	*Neochloridaceae (=Sphaerocysti daceae; =Radiococcaceae)*	Dictyochlorella reniformis (=Dictyochloris reniformis Korsch.)	(Korschikoff) Silva 1959	Freshwater			North Caspian	1971. Levshakova
566.		D. globosa (=D. globosa Korsch.)	(Korschikoff) Silva 1959	Freshwater	Widespread, cosmopolite (?)	Rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
Order Protosiphonales
567.	Micractiniaceae	Dicellula planctonica	Swirenko 1926	Freshwater	Cosmopolite (?)	Rare	Lower Volga	2003. Phytoplankton...
568.		Golenkiniopsis longispina	(Korschikoff) Korschikoff 1953	Freshwater	In Eurasia, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
569.		G. parvula	(Voronichin) Korschikoff 1953	Freshwater	In northern temperate zone, cosmopolite (?)	Very rare	Lower Volga	2003. Phytoplankton...
570.		G. solitaria	(Korschikoff) Korschikoff 1953	Freshwater	Limited distribution, cosmopolite (?)	Rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
571.		Micractinium pusillum	Fresenius 1858	Freshwater	In temperate and tropical zones, cosmopolite (?)		North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
572.		M. quadrisetum	(Lemmermann) G.M. Smith 1916	Freshwater	In northern hemisphere, cosmopolite (?)		North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
573.		Siderocystopsis fusca	(Korschikoff) Swale 1964	Freshwater	In Eurasia, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
574.	*Botryococcaceae (=Dictyosphaeriaceae)*	Dictyosphaerium anomalum	Korschikoff 1953	Freshwater	In Europe, cosmopolite (?)	Rare	Lower Volga	2003. Phytoplankton...
575.		D. ehrenbergianum	Nägeli 1849	Freshwater	In northern temperate zone	Single	Lower Volga	2003. Phytoplankton...
576.		D. ehrenbergianum	Nägeli 1849	Freshwater	Widespread, cosmopolite (?)	Single species	North, Middle Caspian, Lower Volga	1968. Proshkina-Lavrenko, Makarova; 2003. Phytoplankton...
577.		D. pulchellum	Wood 1872	Freshwater	Widespread, cosmopolite (?)	Single species	North, Middle Caspian, Lower Volga	2000. Rakhmatulina
578.		D. tetrachotomum	Printz 1914	Freshwater	In northern temperate zone, cosmopolite (?)	Single, often	Lower Volga	2003. Phytoplankton...
579.		Botryococcus braunii	Êützing 1849	Freshwater -brackish	Widespread	All over area, often	Norh, Middle, South Caspian	2000. Rakhmatulina
580.	Hydrodictyaceae	Pediastrum angulosum	(Ehrenberg) Meneghini 1840	Freshwater	Widespread, cosmopolite (?)	Single, rare	Lower Volga	2003. Phytoplankton...
581.		P. boryanum var. boryanum	(Turp.) Meneghini 1840	Freshwater	Widespread, cosmopolite	Numerous species	North, Middle, South Caspian, Iran, Lower Volga	1997. Rakhmatulina
		P. boryanum var. cornutum (=P. duplex var. cornutum Raciborski)	(Raciborski) Sulek 1969	Freshwater	Widespread, cosmopolite	Often	North Caspian	1971. Levshakova
		P. boryanum var. longicorne	Reinsch 1867	Freshwater	Widespread, cosmopolite (?)	Single, rare	Lower Volga	2003. Phytoplankton...
582.		Pediastrum duplex (=P. duplex f. setigera Meyen; = P. duplex f. setigera Zach.)	Meyen 1829	Freshwater	Widespread, cosmopolite	Often	North, Middle, South Caspian, Lower Volga	1998. Rakhmatulina
583.		P. integrum	Nägeli 1849	Freshwater	Less diverse	Rare	North Caspian	1971. Levshakova
584.		P. simplex var. simplex	Meyen 1829	Freshwater	Widespread, cosmopolite (?)	In river estuaries	North, Middle, South Caspian, Iran, Lower Volga	1970. Babayev; 2003. Phytoplankton...
		P. simplex var. echinulatum	Wittrock 1883	Freshwater	In Europe, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
585.		P. tetras (=P. tetras var. tetraodon (Corda) Hansgirg, =P. muticum Êütz.)	(Ehrenberg) Ralfs 1844	Freshwater	Widespread, cosmopolite (?)	Single species	North Caspian, Lower Volga	1997. Rakhmatulina
586.		Sorastrum spinulosum	Nägeli 1849	Freshwater	Widespread, cosmopolite (?)	Rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
587.	Oocystaceae	Trochiscia aciculifera	(Largerheim) Hansgirg	Freshwater	Limited distribution	Rare	North Caspian	1971. Levshakova
588.		Franceia ovalis	(France) Lemmermann	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
589.		Lagerheimia ciliata	(Lagerheim) Chodat 1895	Freshwater	Widespread, cosmopolite (?)	Single species	North Caspian, Lower Volga	1968. Proshkina-Lavrenko, Makarova; 2003. Phytoplankton...
590.		L. citriformis	(Snow) Collins 1909	Freshwater	In northern temperate zone, cosmopolite (?)	Very rare	Lower Volga	2003. Phytoplankton...
591.		L. genevensis	(Chodat) Chodat 1895	Freshwater	Widespread, cosmopolite (?)	Single species	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
592.		L. longiseta	(Lemmermann) Wille 1909	Freshwater	Widespread, cosmopolite (?)	Single species	Lower Volga	2003. Phytoplankton...
593.		L. quadriseta	(Lemmermann) G.M. Smith 1920	Freshwater	Widespread	Rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
594.		L. subsalsa	Lemmermann 1898	Freshwater	Widespread, cosmopolite (?)	Single species	North Caspian, Lower Volga	1968. Proshkina-Lavrenko, Makarova; 2003. Phytoplankton...
595.		Nephrochlamys allanthoidea	Korschikoff 1953	Freshwater	In Eurasia	Single	Lower Volga	2003. Phytoplankton...
596.		Nephrochlamys subsolitaria	(G. S. West) Korschikoff 1953	Freshwater	In northern temperate zone, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
597.		Oocystis apiculata	W. West	Freshwater			North Caspian	1971. Levshakova
598.		O. borgei	Snow 1903	Freshwater	Cosmopolite (?)	Rare	North Caspian, Lower Volga	1968. Proshkina-Lavrenko, Makarova; 2003. Phytoplankton...
599.		O. composita	Proshkina-Lavrenko 1967	Freshwater	Limited distribution	Rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
600.		O. echinulata	Proshkina-Lavrenko 1967	Freshwater	Limited distribution	Rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
601.		O. gigas	Archer 1877	Brackish-freshwater	Limited distribution		North Caspian	1971. Levshakova
602.		O. lacustris	Chodat 1897	Freshwater	Widespread, cosmopolite (?)	Often	North, South Caspian, Lower Volga	1998. Rakhmatulina
603.		O. marssonii	Lemmermann 1898	Freshwater	In norhtern hemisphere, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
604.		O. parva	W. et G.S. West 1898	Freshwater	Widespread, cosmopolite (?)	Rare	North Caspian, Lower Volga	1968. Proshkina-Lavrenko, Makarova; 2003. Phytoplankton...
605.		O. rupestris	Kirchner	Freshwater			North Caspian	1971. Levshakova
606.		O. socialis	Ostenfeld				South Caspian
607.		O. solitaria (=O. crassa Wittrock)	Wittrock 1879	Freshwater	Widespread	Common	North Caspian	1968. Proshkina-Lavrenko, Makarova
608.		O. submarina	Lagerheim 1886	Freshwater -brackish	Widespread, cosmopolite (?)	Rare	North Caspian, Lower Volga	1968. Proshkina-Lavrenko, Makarova; 2003. Phytoplankton...
609.	*Selenastraceae (=Ankistrodesmaceae; =Chlorellaceae)*	Monoraphidium arcuatum (=Ankistrodesmus arcuatus Korschikoff)	(Korschikoff) Hindák 1970	Freshwater	Widespread, cosmopolite (?)	Often	North Caspian, Iran, Lower Volga	1977. Rakhmatulina; 2003. Phytoplankton...
610.		M. circinale	(Nygaard) Nygaard	Freshwater			Lower Volga	2003. Phytoplankton...
611.		M. contortum (=A. pseudomirabilis Korschikoff)	(Thur.) Komárková-Legnerová 1969	Freshwater	Widespread, cosmopolite (?)	Often	North Caspian, Lower Volga	1998. Rakhmatulina
612.		Monoraphidium griffithii (=A. acicularis (A. Braun) Korschikoff)	(Berkeley) Komárková-Legnerová 1953	Freshwater	Widespread, cosmopolite (?)	Often	North Caspian, Lower Volga	1977. Rakhmatulina; 2003. Phytoplankton...
613.		M. irregularis (=Dactylococcopsis irregularis G.M. Smith)	(G.M. Smith) Komárková-Legnerová 1969	Freshwater	Widespread, cosmopolite (?)	Common, often	North Caspian, Volga river estuary, Lower Volga	1992. Nurieva, Akhundova
614.		M. komarkovae	Nygaard 1979	Freshwater	Cosmopolite (?)	Single, very rare	Lower Volga	2003. Phytoplankton...
615.		M. minutum	(Näg.) Komárková-Legnerová 1969	Freshwater	Widespread, cosmopolite (?)	Single, often	Lower Volga	2003. Phytoplankton...
616.		M. obtusum	(Korschikoff) Komárková-Legnerová 1969	Freshwater	In Europe, cosmopolite (?)	Very rare	Lower Volga	2003. Phytoplankton...
617.		Quadrigula pfitzeri	(Schröder) G.M. Smith 1920	Freshwater	In Europe, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
618.		Raphidocelis sigmoidea	Hindák 1977	Freshwater	In Europe	Very rare, single	Lower Volga	2003. Phytoplankton...
619.		Siderocelis ornata	(Fott) Fott 1934	Freshwater-brackish (?)	In Europe, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
620.		S. sphaerica	Hindák 1977	Freshwater	In Europe	Very rare, single	Lower Volga	2003. Phytoplankton...
621.		Tetraedron caudatum	(Corda) Hansgirg 1888	Freshwater	Widespread, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
622.		Tetraedron incus	(Teiling) G.M. Smith	Freshwater	In northern temperate zone	Single	Lower Volga	2003. Phytoplankton...
623.		T. minimum	(A. Braun) Hansgirg 1888	Freshwater	In temperate zone, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
624.		T. pentaedricum	W. et G.S. West		Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
625.		T. triangulare	Korschikoff 1953	Freshwater	In norhtern hemisphere, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
626.		Selenastrum bibraianus (=Ankistrodesmus bibraianus (Reinsch) Korsch.)	Reinsch 1867	Freshwater	Widespread, cosmopolite (?)	Often	Lower Volga	2003. Phytoplankton...
627.		Selenastrum gracilis (=A. gracilis (Reinsch) Korsch.)	Reinsch 1867	Freshwater	Widespread	Often	Lower Volga	2003. Phytoplankton...
628.		Ankistrodesmus angustus	Bern.	Freshwater			North Caspian	1971. Levshakova
629.		A. convolutus	Ñorda 1839	Freshwater	Widespread	Rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
630.		A. densus	Korschikoff	Freshwater	Limited distribution		North Caspian	1971. Levshakova
631.		A. falcatus	(Ñorda) Ralfs 1848	Freshwater	Widespread, cosmopolite	Rare	North, Middle Caspian, Iran, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
632.		A. fusiformis	Corda ex Korschikoff 1953	Freshwater	Widespread, cosmopolite (?)	Often	Lower Volga	2003. Phytoplankton...
633.		A.spiralis	(Turner) Lemmerman 1908	Freshwater	Widespread, cosmopolite (?)	Rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
634.		Chlorolobion braunii	(Nägeli) Komárková-Legnerová 1969	Freshwater	Widespread, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
635.		Closteriopsis acicularis	(G.M. Smith) Belcher et Swale	Freshwater	Widespread, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
636.		Kirchneriella aperta (=K. obesa var. aperta (Teiling) Brunnth.)	Teiling 1912	Freshwater	Spread in northern temperate zone	In small numbers	North Caspian	1971. Levshakova
637.		K. irregularis	(Smith) Korschikoff	Freshwater	Widespread		North Caspian	1971. Levshakova
638.		K. lunaris	(Kirchner) Moebius 1894	Freshwater	Widespread, cosmopolite (?)	Often	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
639.		K. obesa (=K. intermedia Korsch.)	(W. West) Schmidle 1893	Freshwater	Widespread, cosmopolite	Single	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
640.		Raphidocelis contorta (=Kirchneriella contorta (Schmidle) Bohl; =K. gracillima Bohl)	(Schmidle) Marvan, Komárek et Comas 1984	Freshwater	Widespread	Single	North Caspian	1971. Levshakova
641.		Hyaloraphidium arcuatum	Korschikoff	Freshwater	Limited distribution		North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
642.		Hyaloraphidium contortum var. contortum	Pascher et Korschikoff 1931	Freshwater	Limited distribution	Single	North Caspian	1971. Levshakova
		H. contortum var. tenuissimum	Korschikoff 1931	Freshwater	In Eurasia	Single	Lower Volga	2003. Phytoplankton...
643.		H. rectum	Korschikoff	Freshwater	Limited distribution		North Caspian	1971. Levshakova
644.	*Radiococcaceae (=Protococcaceeae)*	Coenochloris pyrenoidosa	Korschikoff 1953	Freshwater	In Eurasia	Very rare, single	North Caspian, Lower Volga	1968. Proshkina-Lavrenko, Makarova; 2003. Phytoplankton...
645.		Coenocystis obtusa (=Kirchneriella obtusa (Korsch.) Kom.)	Korschikoff 1953	Freshwater	In Europe, cosmopolite (?)	Very rare, single	Lower Volga	2003. Phytoplankton...
646.		Coenolamellus botryoides	Proshkina-Lavrenko 1966	Freshwater -brackish	Only in the Caspian Sea	Rare	North Caspian	1971. Levshakova
647.		Coenococcus planctonicus (=Eutetramorus planctonicus (Korsch.) Bourr.)	Korschikoff 1953	Freshwater	In Europe, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
648.		C. polycoccus (=E. polycoccus (Korsch.) Kom.)	(Korschikoff) Hindák	Freshwater	In norhtern hemisphere, cosmopolite (?)	Single, rare	Lower Volga	2003. Phytoplankton...
649.	Coelastraceae	Coelastrum astroideum	De-Notaris 1867	Freshwater	Widespread, cosmopolite	Single	Lower Volga	2003. Phytoplankton...
650.		C. indicum	Turner 1892	Freshwater	Widespread	Very rare	Lower Volga	2003. Phytoplankton...
651.		Coelastrum microporum	Nägeli 1855	Freshwater	Widespread, cosmopolite		North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
652.		C. pulchrum	Schmidle 1892	Freshwater	Widespread	Single	Lower Volga	2003. Phytoplankton...
653.		C. sphaericum (=C. cubicum Näg.)	Nägeli 1849	Freshwater	Widespread, cosmopolite (?)	Often	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
654.	Scenedesmaceae	Pseudotetrastrum punctatum (=Tetrastrum punctatum (Schmidle) Ahlstr. et Tiff.)	(Schmidle) Hindák 1977	Freshwater	Widespread in northern hemisphere, cosmopolite (?)	Single	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
655.		Westella botryoides	(W. West) De-Wildemann 1897	Freshwater	Widespread	Rare	North Caspian	1971. Levshakova
656.		Crucigenia fenestrata	(Schmidle) Schmidle 1901	Freshwater	Widespread	Rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
657.		C. lauterbornei	(Schmidle) Schmidle 1901	Freshwater	Widespread	Rare	North Caspian	1968. Proshkina-Lavrenko, Makarova
658.		C. quadrata	Morren 1930	Freshwater	In Europe	Rare	North Caspian	1971. Levshakova
659.		C. tetrapedia	(Kirchn.) W. et G.S. West 1902	Freshwater	Widespread, cosmopolite (?)	Rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
660.		Crucigeniella apiculata	(Lemmermann) Komárek 1974	Freshwater	Widespread, cosmopolite (?)	Often	Lower Volga	2003. Phytoplankton...
661.		C. rectangularis (=Crucigenia rectangularis (Näg.) Gay.)	(Nägeli) Komárek 1974	Freshwater	Cosmopolite (?)	Single	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
662.		Didymocystis bicellularis	(Chodat) Komárek	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
663.		D. inermis	(Fott) Fott 1973	Freshwater	In temperate zone, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
664.		D. lineata	Korschikoff 1953	Freshwater	In Eurasia, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
665.		D. planctonica	Korschikoff 1953	Freshwater	In Europe, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
666.		Komarekia appendiculata	(Chodat) Fott 1981	Freshwater	In Europe	Single	Lower Volga	2003. Phytoplankton...
667.		Tetrastrum elegans (=T. hastiferum (Arnoldi) Korsch.)	Playfair 1917	Freshwater	In Eurasia, cosmopolite (?)	Very rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
668.		T. heteracanthum	(Nordst.) Chodat 1895	Freshwater	In temperate zone, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
669.		T. staurogeniaeforme	(Schröder) Lemmermann 1900	Freshwater	Widespread, cosmopolite (?)	Often	Lower Volga	2003. Phytoplankton...
670.		T. triacanthum	Korschikoff 1939	Freshwater	In Eurasia, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
671.		T. triangulare (=T. glabrum (Roll.) Ahlstr. et Tiff.)	(Chodat) Komárek 1974	Freshwater	Widespread, cosmopolite (?)	Single	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
672.		Actinastrum fluviatile (=A. hantzschii var. fluviatile Schröder)	(Schröder) Fott 1977	Freshwater	Widespread, cosmopolite (?)	Single	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
673.		Actinastrum hantzschii var. hantzschii	Lagerheim 1822	Freshwater	Widespread, cosmopolite	Often	North, Middle Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
		A. hantzschii var. gracile	Roll 1953	Freshwater	Widespread	Often	North Caspian	1968. Proshkina- Lavrenko, Makarova
		A. hantzschii var. subtile	Wołoszynska 1911	Freshwater	Widespread, cosmopolite	Single, often	Lower Volga	2003. Phytoplankton...
674.		A. raphidioides	Brunnth.	Freshwater			North Caspian	1971. Levshakova
675.		Scenedesmus acuminatus var. acuminatus	(Lagerheim) Chodat 1902	Freshwater	In northern temperate zone, cosmopolite (?)	Common	North, Middle, South Caspian, Lower Volga	1998. Rakhmatulina
		S. acuminatus var. elongatus	G.M. Smith 1920	Freshwater	Widespread	Common	North Caspian	1971. Levshakova
676.		S. acutiformis	Schröder 1897	Freshwater	In temperate and tropical zones, cosmopolite (?)	Rare	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
677.		S. acutus	Meyen 1829	Freshwater	Widespread, cosmopolite	Often	Lower Volga	2003. Phytoplankton...
678.		S. apiculatus	(W.et G.S. West) Chodat 1926	Freshwater	Limited distribution	Single	North Caspian	1971. Levshakova
679.		S. arcuatus	(Lemmermann) Lemmermann 1899	Freshwater	Widespread	Common	North Caspian	1971. Levshakova
680.		S. armatus var. bicaudatus	(Gugl.) Chodat 1926	Freshwater	In northern temperate zone	Single, rare	Lower Volga	2003. Phytoplankton...
681.		S. bernarlii (=S. acuminatus var. bernarlii (G.M. Smith) Deduss.)	G.M. Smith 1916	Freshwater	Widespread in temperate and tropical zones	Common	North Caspian	1971. Levshakova
682.		S. bicaudatus	Dedussenko 1925	Freshwater	In northern temperate zone	Single	Lower Volga	2003. Phytoplankton...
683.		S. brasiliensis var. brasiliensis	Bohlin 1897	Freshwater	Widespread, cosmopolite (?)	Single, rare	Lower Volga	2003. Phytoplankton...
		S. brasiliensis var. cinnamomeus	Roll 1927	Freshwater	Widespread, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
684.		S. caudato-aculeolatus (=S. quadricauda var. dentatus Deduss.)	Chodat 1926	Freshwater	In Eurasia, cosmopolite (?)	Single	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
685.		Scenedesmus costatogranulatus	Skuja 1948	Freshwater	Widespread, cosmopolite (?)	Very rare	Lower Volga	2003. Phytoplankton...
686.		S. curvatus	Bohlin	Freshwater			North Caspian	1971. Levshakova
687.		S. denticulatus	Lagerheim 1882	Freshwater	Widespread, cosmopolite	Rare	North Caspian, Lower Volga	1998. Rakhmatulina
688.		S. falcatus (=S. acuminatus var. biseriatus Reinhardt)	Chodat 1894	Freshwater	Widespread in northern temperate zone	Common	North Caspian	1971. Levshakova
689.		S. gutwinskii	Chodat 1926	Freshwater	In Eurasia	Very rare	Lower Volga	2003. Phytoplankton...
690.		S. incrassatulus	Bohlin 1897	Freshwater	Widespread, cosmopolite (?)	Very rare, single	Lower Volga	2003. Phytoplankton...
691		S. insignis	(W. et G.S. West) Chodat 1913	Freshwater	Widespread (?)	Very rare	Lower Volga	2003. Phytoplankton...
692.		S. intermedius var. intermedius (=S. quadricauda var. eualternans Pr.-Lavr.)	Chodat 1926	Freshwater	Widespread, cosmopolite (?)	Single	North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
		S. intermedius var. balatonicus	Hortobagyi 1943	Freshwater	Limited distribution, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
693.		S. lefevrii	Deflandre 1924	Freshwater	In Eurasia, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
694.		S. obliquus (=S. obliquus var. àlternans Chrystjuk, =S. bijugatus (Turp.) Kütz.)	(Turp.) Êützing 1833	Freshwater	Widespread in temperate and tropical zones	Single	North Caspain, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
695.		S. obtusus (=S. bijugatus var. alternans (Reinsch) Hansgirg)	Meyen 1829	Freshwater	Widespread in northern hemisphere	Common	North Caspian, Lower Volga	1998. Rakhmatulina
696.		S. opoliensis var. opoliensis	P. Richter 1897	Freshwater	Widespread, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
697.		S. opoliensis var. carinatus	Lemmermann 1899	Freshwater	Widespread, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
698.		S. papillosum	Pankow 1986	Freshwater	Limited distribution	Single	Lower Volga	2003. Phytoplankton...
699.		Scenedesmus protuberans	Fritsch 1927	Freshwater	In northern hemisphere, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
700.		S. quadricauda var. quadricauda	(Turp.) Brébisson 1835	Freshwater	Widespread biofouling, cosmopolite	Common, often	North, Middle, South Caspian, Iran, Lower Volga	1971 Rakhmàtulina; 2003. Phytoplankton...
		S. quadricauda var. setosus	Kirchner 1878	Freshwater	Widespread	Single	North Caspian	1971. Levshakova
		S. quadricauda var. vesiculosis	Proschkina-Lavrenko	Freshwater			North Caspian	1971. Levshakova
701.		S. sempervirens	Chodat 1913	Freshwater	In northern hemisphere, cosmopolite (?)	Single, rare	Lower Volga	2003. Phytoplankton...
702.		S. spinosus	Chodat 1926	Freshwater	Limited distribution, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
703.		S. verrucosus	Roll 1925	Freshwater	In northern hemisphere, cosmopolite (?)	Single	Lower Volga	2003. Phytoplankton...
704.		Tetradesmus wisconsiensis	G.M. Smith 1913	Freshwater	In Europe	Very rare	Lower Volga	2003. Phytoplankton...
Order Ulothrichales
705.	Ulothrichaceae	Binuclearia lauterbornii var. lauterbornii	(Schmidle) Proshkina-Lavrenko 1966	Brackish-freshwater	Diverse species	All over area, numerous	North Caspian, Iran	2000. Rakhmatulina
		B. lauterbornii var. crassa	Proshkina-Lavrenko et Makarova	Brackish-freshwater			North, Middle, South Caspian	1971. Levshakova
706.		Chlorhormidium tribonematoideum	(Skuja) Starmach				Lower Volga	2003. Phytoplankton...
707.		Elakatothrix acuta	Pascher				Lower Volga	2003. Phytoplankton...
708.		E. gelatinosa	Wille				Lower Volga	2003. Phytoplankton...
709.		E. genevensis	(Reverd.) Hind.				Lower Volga	2003. Phytoplankton...
710.		Giminellopsis fragilis	Korschikoff				Lower Volga	2003. Phytoplankton...
711.		Koliella longiseta	(Vischer) Hind.				Lower Volga	2003. Phytoplankton...
712.		Ulothrix subtilissima	Rabenh.				Lower Volga	2003. Phytoplankton...
713.		Ulothrix tenerrima	Êützing	Brackish-freshwater			North Caspian	1971. Levshakova
714.		U. zonata	Êützing	Brackish-freshwater			North Caspian	1971. Levshakova
715.		Uronema confervicolum	Lagerheim				Lower Volga	2003. Phytoplankton...
716.	Chaetophoraceae	Stigeoclonium sp.					Lower Volga	2003. Phytoplankton...
Order Oedogoniales
717.	Oedogoniales	Oedogonium ssp.		Freshwater			Lower Volga	2003. Phytoplankton...
Class Zygnematophyceae (=Conjugatophyceae)
Order Gonatozygales
718.	Gonatozygaceae	Gonatozygon monotaenium	De Bary	Freshwater			Lower Volga	2003. Phytoplankton...
Order Zygnematales
719.	Zygnemataceae	Zygnema ralfsii	(Hassal) de Bary	Brackish-freshwater	Widespread	Rare	North Caspian	1971. Levshakova
720.	Spirogyraceae	Spirogyra calospora	Gleve 1868	Brackish-freshwater	Widespread	Very often	North Caspian	1971. Levshakova
721.		S. decimina f. juergensii	(Êützing) V. Poljansky 1845	Brackish-freshwater	Widespread	Often	North Caspian	1971. Levshakova
722.		S. tenuissima f. cylindrica	(Czurda) V. Poljansky	Brackish-freshwater	Widespread	Often	North Caspian	1971. Levshakova
723.		S. ternata	Ripart	Brackish-freshwater			North Caspian	1971. Levshakova
724.	Mougeotiaceae	Mougeotia sp.	I. Kisselev 1958	Brackish-freshwater	Diverse	Single species	North, South Caspian	1971. Levshakova
Order Desmidiales
725.	Ñlosteriaceae	Closterium acerosum	(Schmidle) Ehrenberg	Brackish-freshwater			North Caspian	1971. Levshakova
726.		C. acutum f. tenuis	Nordst.	Freshwater			Lower Volga	2003. Phytoplankton...
		C. acutum var. variabile	(Lemmermann) W. Krieger	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
727.		C. archerianum	Cleve	Brackish-freshwater			North Caspian	1971. Levshakova
728.		C. exiguum	W. et G. West	Freshwater			Lower Volga	2003. Phytoplankton...
729.		Closterium leibleinii	Êützing 1833	Brackish-freshwater	Widespread	Rare	North Caspian, Lower Volga	1968. Proshkina-Lavrenko, Makarova; 2003. Phytoplankton...
730.		C. lineatum f. minus	(Woronichin) Kossinskaya	Freshwater				2003. Phytoplankton...
731.		C. lunula	(Müller) Nitzsch	Brackish- freshwater			North Caspian	1971. Levshakova
732.		C. moniliferum	(Bory) Ehrenberg 1904	Brackish-freshwater	Extremely widespread	Rare	North Caspian	1971. Levshakova
733.		C. parvulum	Nägeli 1849	Brackish- freshwater	Widespread	Often	North Caspian	1968. Proshkina Lavrenko, Makarova
734.		C. peracerosum	Gay	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
735.		C. selenastroides	Roll	Freshwater			Lower Volga	2003. Phytoplankton...
736.		C. turgidum	Ehrenberg	Brackish-freshwater			North Caspian	1971. Levshakova
737.		C. venus f. venus	Kützing	Freshwater			Lower Volga	2003. Phytoplankton...
		C. venus f. minus	Roll	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
738.	Desmidiaceae	Cosmarium angulosum	Brébisson	Freshwater			Lower Volga	2003. Phytoplankton...
739.		C. botrytis	Meneghini	Brackish-freshwater	Cosmopolite	Sporadical	North Caspian	1971. Levshakova
740.		C. crenatum var. crenatum	Ralfs	Brackish-freshwater			North Caspian	1971. Levshakova
		C. crenatum var. subcrenatum	Hantzsch.	Freshwater
741.		C. depressum	(Nägeli) Lund.	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
742.		C. formosulum	Hoff	Freshwater			Lower Volga	2003. Phytoplankton...
743.		C. granatum	Brébisson 1848	Brackish-freshwater	Widespread	Single species	North Caspian	1971. Levshakova
744.		C. impressulum	Elfv.	Freshwater	Cosmopolite (?)		Lower Volga	2003. Phytoplankton...
745.		C. kielmanii	Witte	Freshwater			Lower Volga	2003. Phytoplankton...
746.		C. meneghinii	Brébisson 1848	Brackish-freshwater	Widespread	Rare	North Caspian	1971. Levshakova
747.		C. ochtodes	Nordst.	Brackish-freshwater			North Caspian	1971. Levshakova
748.		C. retusiforme	(Wille) Gutw.	Brackish-freshwater			North Caspian	1971. Levshakova
749.		Cosmarium sphagnicolum	W. et G.S. West	Freshwater			Lower Volga	2003. Phytoplankton...
750		C. succisum	W. West	Freshwater			Lower Volga	2003. Phytoplankton...
751.		C. turpinii	Brébisson	Brackish-freshwater			North Caspian	1971. Levshakova
752.		C. undulatum	Ñorda 1839	Brackish-freshwater	Widespread	Single species	North Caspian	1968. Proshkina-Lavrenko, Makarova
753.		C. venustum	Brébisson	Brackish-freshwater	Cosmopolite (?)		North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
754.		Cosmoastrum muticum	(Brébisson) Pal.-Mordv.	Freshwater			Lower Volga	2003. Phytoplankton...
755.		Staurodesmus quiriferus	(W. et G.S. West) Teiling	Freshwater			Lower Volga	2003. Phytoplankton...
756.		Staurastrum americanum	(W. et G.S. West) G.M. Smith	Freshwater			Lower Volga	2003. Phytoplankton...
757.		S. chaetoceros	(Schröder) G.M. Smith	Freshwater			Lower Volga	2003. Phytoplankton...
758.		S. forficulatum	Lund.	Freshwater			Lower Volga	2003. Phytoplankton...
759.		S. gracile	Ralfs 1845	Brackish-freshwater	Widespread	Rare	North Caspian	1971. Levshakova
760.		S. hexacerum	(Ehrenberg) Wittrock	Freshwater			Lower Volga	2003. Phytoplankton...
761.		S. paradoxum	Meyen	Brackish-freshwater			North Caspian, Lower Volga	1971. Levshakova; 2003. Phytoplankton...
762.		S. polymorphum	Brébisson 1848	Brackish-freshwater	Cosmopolite	Single species	North Caspian	1971. Levshakova
763.		S. tetracerum	Ralfs	Brackish-freshwater			North Caspian	1971. Levshakova
764.	Tetrapediaceae	Tetrapedia sp.	Reinsch	Freshwater			North Caspian