| abstract | In an annotated list of halacarid species known from the Black Sea area, Bartsch (2004) mentioned 41 species. Recently another three species, one new to science and two new records, were extracted from sediment samples taken near Sinop, Turkish Black Sea coast, from 3 and 10 m depth. The new species, Copidognathus dissimilis sp. n., is described. The descriptions of Camactognathus tesselatus (Morselli & Mari, 1982) and Copidognathus sculptus (Police, 1909) are supplemented. Copidognathus perforatus Viets, 1940 is regarded as a junior synonym of C. sculptus. Copidognathus dissimilis and Camactognathus tesselatus were the halacarid species most abundant in the sediment samples. |