Family Leptonchidae Thorne, 1935

21. * Proleptonchus Lordello, 1955 sp.— {29} (0, 4, 0, 0; 1)

Population structure and abundance. One juvenile individual and one female.

Ecology and distribution. Edaphobiont or amphibiont. The nematodes of the genus Proleptonchus have been observed predominantly in soil biotopes. Only six out of 16 known species are known from water bodies in certain countries of Asia, Africa and North America (Peña-Santiago 2006; Andrássy 2009b; Nguyen et al. 2012).

Remarks. Earlier one species of the genus was reported from terrestrial habitats in Vietnam: P. aestivus Nguyen, Vu & Peña-Santiago, 2012 (Nguyen et al. 2012). The female we found belongs to another, unidentified species.