Karkinochromadora Blome, 1982

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 : 40

Genus Karkinochromadora Blome, 1982

The genus Karkinochromadora was erected by Blome (1982) to accommodate Chromadora lorenzeni . It can be distinguished from other genera of Chromadoridae by a peculiar combination of characters like the unusual arrangement of two consecutive teeth and the heterogeneously ornamented cuticle with lateral differentiation.

Diagnosis (modified from Blome 1982 and Tchesunov 2014): Cuticle with a heterogeneous ornamentation, with lateral differentiation of two and four longitudinal rows of enlarged dots. Six outer labial papillae and four cephalic setae in separate circles. Presence of somatic setae. Amphideal fovea rounded loop shaped. Buccal cavity with an unusual arrangement of the two consecutive dorsal teeth (a small anterior and a larger posterior) and two small ventrosublateral teeth. Peribuccal pharyngeal tissue swollen dorsally. Presence of a pear-shaped pharyngeal bulb. Weak precloacal supplements present with grouped distribution in males. Marine.