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 Desmodoridae Filipjev, 1922 101. Prodesmodora circulata (Micoletzky, 1913) Micoletzky, 1925 — {62} (0, 0, 0, 9; 1 ) Population structure and abundance. Three females (~ 1x10 3/m2). Ecology and distribution. Hydrobiont. Widespread species. Found in the water bodies of many countries of Europe, Asia and in some areas of North and South America ( Andrássy 2005 ; Decraemer & Smol 2006 ). Previously collected in one of the rivers of northern Vietnam ( Gagarin & Nguyen 2008a ). 102. Prodesmodora Micoletzky, 1923 sp.— {27, 31} (0, 7, 0, 0; 3 ) Population structure and abundance. Three juvenile specimens at the first and four females at the second site (more than 1x10 3/m2). Remarks. These specimens are smaller (length of adult females is less than 500 µm) and have some other differences from P. circulata from the locality noted above. Most likely they belong to another, as yet undescribed, species, but we are not absolutely sure about that. Besides P. circulata , no other species of the genus have been reported from Vietnam.