A checklist of the species under the genus Monocystis Von Stein, 1848 (Apicomplexa: Sporozoa: Monocystidae) described from oligochaete hosts Author Sarkar, Sutapa Author Bandyopadhyay, Probir K. prabir0432@hotmail.com text Zootaxa 2013 2013-09-16 3710 4 381 388 journal article 4792 10.11646/zootaxa.3710.4.7 02be72df-b930-4f7a-9c69-60ed36d29347 1175-5326 6164248 5B76EC26-3663-4725-9F2F-6F19F149F303 19) Monocystis nidata Boisson, 1957 Infested organ. Seminal vesicle Type host. Pontodrilus ephippiger Type locality. India and China Description. Intrablastophorical, small cell like, measures 260 290 µm × 90 120 µm. Nucleus spherical with 50 µm in diameter. Cyst spherical, measuring 3 4 µm (diameter is not given). Gametes are not described. Spores navicular, 9 µm in length.