Subsphaerolaimus minor sp. n. and Micromicron cephalatum Cobb, 1920 (Nematoda) from the Yen River Estuary of Vietnam Author Gagarin, Vladimir G. Author Thanh, Nguyen Vu text Zootaxa 2015 3994 3 396 410 journal article 10.11646/zootaxa.3994.3.4 9f565fd3-68dc-48b2-a29d-2d4e2c2374f0 1175-5326 238873 C55F47BC-F08B-40E3-A802-29BF1B840D6C Genus Pseudochromadora Daday, 1899 Diagnosis. (after Verschelde et al. 2006 , slightly emended). Cuticle finely annulated. Lateral alae extending from posterior pharynx end to the tail. The annuli split up and interdigitate at the level of the lateral alae. Somatic setae numerous, arranged in six longitudinal rows. Labial and cephalic sensillae in the shape of thin and short setae. Cephalic capsule well developed. Amphidial fovea placed centrally on the cephalic capsule. Buccal cavity narrow with teeth. Pharynx with rounded terminal bulb. Males have copulatory thorns and postcloacal thorns. Arched spicules; gubernaculum without dorsal apophysis. Type species: Pseudochromadora cazca Gerlach, 1956 . Other valid species: P. buccobulbosa Verschelde & Vincx, 1995 ; P. coomansi Verschelde & Vincx, 1995 ; P. galeata Verschelde, Nicholas & Vincx, 2006 ; P. incubans Gourbault & Vincx, 1990 ; P. obesa Gagarin & Nguyen, 2011 ; P. parva Gagarin & Nguyen, 2008 ; P. securis Verschelde, Nicholas & Vincx, 2006 . Illustrations of male P. haleata Verschelde et al. , 2006 are presented in Fig. 6