Protistology 6 (4) 264–270 (2010/11) |
Two new species of Myxobolus (Myxosporea, Bivalvulida) from the Indian major carp Labeo rohita (Ham.) |
Harpreet Kaur and Ranjeet Singh Department of Zoology, Punjabi University, Patiala, India Summary During a survey on fish parasites in Wetlands of Punjab, India, two new myxosporean species, Myxobolus sushmii sp. nov. and Myxobolus punjabii sp. nov. were found infecting the Indian freshwater fish Labeo rohita (Ham.). Spores of M. sushmii sp. nov., a parasite infecting the eye ball, are measuring 9.0–10.2 (9.6 ± 0.84) × 7.3–9.3 (8.3 ± 1.41) µm in size. The spores have ovoidal to sub-spherical shape with flat anterior end between the openings of two polar capsules and rounded posterior end. Spore valves are thick with 6-8 parietal folds arranged around the margin of spore. Two polar capsules are distinctly unequal, broad and pyriform in shape with pointed anterior end. Larger one is 4.1–5.3 (4.70 ± 0.84) × 2.9–3.5 (3.2 ± 0.42) µm and smaller one is 2.9–3.4 (3.10 ± 0.35) × 1.0–3.0 (2.0 ± 1) µm in size. Prominent U-shaped intercapsular process is present. M. punjabii sp. nov. infect the caudal fin. The sub-spherical spores are measuring 8.1–9.7 (8.9 ± 3.1) × 6.4–7.5 (6.9 ± 0.77) µm in size. Shell valves are without parietal folds. Two polar capsules are distinctly unequal. Larger one measures 3.4–5.4 (4.4 ± 1.41) × 2–3.4(2.7 ± 0.98) µm; smaller one is 2.8–3.6 (3.2 ± 0.56) × 1.2–2.2 (1.7 ± 0.7) µm in size. They are tear shaped with pointed anterior end and broad posterior one. Both are placed parallel to each other. Intercapsular process is absent. Key words: freshwater fishes, Harike Wetland, India, Kanjali Wetland, Labeo rohita, myxozoans, Myxobolus Address for correspondence: Harpreet Kaur. Department of Zoology, Punjabi University, Patiala-147002, India; e-mail: harpreet_bimbra@yahoo.com |
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