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 Achromadoridae Gerlach & Riemann, 1973 95. * Achromadora micoletzkyi (Stefanski, 1915) Micoletzky, 1925 — {23, 24, 27, 29, 31, 36} (11, 11, 8, 0; 8 ) Population structure and abundance. At site 27—11 juveniles and 51 females (23 x10 3 /m2), at sites 24 and 31—2 to 5 juvenile individuals and 10 to 16 females, including those with eggs (4–7 x10 3 /m2), at the other sitesnot more than 5 juvenile specimens and females (up to 1 x10 3 /m 2 in the quantitative samples). Ecology and distribution. Amphibiont. Prefers terrestrial biotopes but also occurs in water bodies. Cosmopolitan ( Andrássy 2005 ; Decraemer & Smol 2006 ). Not previously observed in Vietnam. 96. Achromadora ruricola (de Man, 1880) Micoletzky, 1925 — {28, 31} (0, 7, 0, 0; 3 ) Population structure and abundance. Single gravid female in each sample. Ecology and distribution. Similar to the species described above. Cosmopolitan ( Andrássy 2005 ; Decraemer & Smol 2006 ). Collected in Vietnam many times ( Nguyen 2007 ). 97. * Achromadora cf. semiarmata Altherr, 1952 — {59} (0, 0, 8, 0; 1 ) Population structure and abundance. Single female. Ecology and distribution. Amphibiont. Found in terrestrial and freshwater habitats in some countries in Asia ( China ), Europe, Africa, and South America and one of the Galapagos Islands ( Andrássy 2005 ; Decraemer & Smol 2006 ). First record for Vietnam . Remarks. This female differs from the females of A. micoletzkyi in size and position of amphids ( Andrássy 2005 ). Study of males is necessary for reliable species identification. 98. Achromadora Cobb, 1913 spp.— {27, 65} (0, 4, 0, 9; 3 ) Population structure and abundance. Female and female with egg of two different unidentified species.