Two new species of free-living nematodes (Nematoda) from Vietnam
S.Ya. Tsalolikhin
Abstract. Two new species of nematodes from the families Monhysteridae and Tobrilidae are described. Nematodes were collected from small forest ponds in North and Central Vietnam. Monhystera vietnamica sp. nov. differs from morphologically close M. uncigubernaculum Zedan, Jacobset et Geraert, 1989 mainly in longer vagina and rectum, from M. rolandi Khan et Tahseen, 2006 in longer cephalic setae and presence of ocellus. Brevitobrilus larae sp. nov. differs from morphologically close B. orientalis Tsalolikhin, 2013 mainly in longer body and longer and thinner, not hornlike cephalic setae. The genus Brevitobrilus was previously represented in Vietnam only by the species B. stefanskii (Micoletzky, 1925).
Key words: free-living nematodes, Vietnam, Monhysteridae, Tobrilidae, Monhystera, Brevitobrilus, new species
Zoosystematica Rossica, 2020, 29(1): 11–16 ▪ Published online 31 March 2020
https://doi.org/10.31610/zsr/2020.29.1.11 ▪ Open full article 
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