A review of the genus Trischistoma Cobb, 1913 (Nematoda: Enoplida), with descriptions of four new species from New Zealand Author Zhao, Zeng Qi text Zootaxa 2011 3045 1 25 journal article 46251 10.5281/zenodo.207400 951da835-db06-485c-9335-4a1ceaf9ddb9 1175-5326 207400 Key for identification of species of Trischistoma 1. Body length> 1.2 mm ; postvulval uterine sac present......................................................... 2 – Body length < 1.2 mm ; postvulval uterine sac absent.......................................................... 4 2. Tail length 5–7 anal body diameters; postvulval sac <50% vulva-anus distance.......................... T. monohystera – Tail length 3–4.5 anal body diameters; postvulval sac>50% vulva-anus distance................................... 3 3. a = 38–44; b = 4.9–5.8; c = 15.2–20.6; c’ = 3.2–3.8; V = 81–83%...................................... T. equatoriale – a = 44–49; b = 4.7–4.8; c = 12.3–14.9; c’ = 4.2–4.6; V = 73–76%................................... T. otaika sp. nov. 4. Body length>1.0 mm.................................................................................. 5 – Body length <1.0 mm.................................................................................. 6 5. Minute denticles in mouth cavity; a = 49– 58, b = 4.4–5.3; c = 4.7–5.9.................................... T. gracile – Prominent denticles in mouth cavity; a = 39–47; b = 3.8–4.1; c = 3.9–4.9.......................... T. tukorehe sp. nov. 6. Cervical setae absent......................................................................... T. pellucidum – Cervical setae present.................................................................................. 7 7. Cervical setae paired, lateral.............................................................. T. triregius sp. nov. – Cervical seta single, ventral............................................................. T. waiotama sp. nov.