Chromadorissa Filipjev, 1917

Venekey, Virag, Gheller, Paula F., Kandratavicius, Noelia, Cunha, Beatriz Pereira, Vilas-Boas, Ana Carolina, Fonseca, Gustavo & Maria, Tatiana F., 2019, The state of the art of Chromadoridae (Nematoda, Chromadorida): a historical review, diagnoses and comments about valid and dubious genera and a list of valid species, Zootaxa 4578 (1), pp. 1-67 : 33

Genus Chromadorissa Filipjev, 1917

The genus Chromadorissa , originally considered as part of sub-family Chromadorinae , was established by Filipjev (1917) with the description of the type species C. beklemishevi . Filipjev (1917) also suggested that Monhystera bulbosa Grimm , 1 876 should belong to Chromadorissa . Baylis & Daubney (1926) considered this genus, as well as several others, such as Ptycholaimellus and Spilophorella , as synonyms of Chromadora , but Kreis (1928) separated Chromadorissa from them. In that study, Kreis (1928) described C. strandi , but did not considered C. bulbosa as a valid species. Aminova & Galtsova (1978) considered C. bulbosa as valid and described C. inaequibulba but later Jensen & Nehring (1992) transferred this last species to Ptycholaimellus.

Diagnosis (modified from Tchesunov 2014): Cuticle punctuated with heterogeneous ornamentation and lateral differentiation of larger dots arranged in two longitudinal rows. Six outer labial papillae and four cephalic setae in separate circles. Amphideal fovea transverse slit-like and loop shaped. Buccal cavity with one large hollow dorsal tooth and smaller ventrosublateral teeth. Pharynx extending from the peribuccal region, swollen moderately and nearly symmetrically, to the bipartite posterior bulb. Males with five to six complex supplements. Marine.