An annotated checklist of the main representatives of meiobenthos from inland water bodies of Central and Southern Vietnam. I. Roundworms (Nematoda) Author Gusakov, Vladimir A. Author Gagarin, Vladimir G. text Zootaxa 2017 4300 1 1 43 journal article 32584 10.11646/zootaxa.4300.1.1 7eb2410e-8578-432a-88f8-bc129d0a5b08 1175-5326 837117 5FA0C659-9C52-4ABB-9CB6-1FB5CDDDF9F8 Family Tylenchidae Örley, 1880 126. Tylenchidae gen sp.— {29} (0, 4, 0, 0; 1 ) Population structure and abundance. Single female of an unidentified genus. Ecology and distribution. The majority of tylenchids are edaphobionts inhabiting various terrestrial biotopes, but there are species occurring in the aquatic environment as well ( Andrássy 2007 ; Bert & Borgonie 2006 ). Remarks. Several genera of this family have been found in Vietnam ( Nguyen & Nguyen 2005 ; Nguyen 2007 ). 127. * Filenchus orientalis Xie & Feng, 1996 — {57} (0, 0, 8, 0; 1 ) Population structure and abundance. Two females and one male (~ 1x10 3/m2). Ecology and distribution. Likely an edaphobiont. Phytoparasite. Recorded in China and Iran in plant rhizosphere soil ( Azimi et al. 2016 ). First record for Vietnam .