Psednos groenlandicus

Psednos groenlandicus, the Greenland dwarf snailfish, is a very small deep-water fish of the snailfish family Liparidae. FishBase places it in the order Perciformes, suborder Cottoidei, the sculpins and their relatives. It was described by N. Chernova in 2001, in a review of the genus Psednos that named ten new species from the North Atlantic and southwestern Indian Ocean. The species name refers to Greenland, its type locality. The fish is recorded from the Davis Strait in the Northwest Atlantic, where it lives near the sea floor at depths of about 930 to 1055 metres, and the largest recorded length is only 5.3 centimetres. Identifying features listed by FishBase include 41 dorsal soft rays, 47 vertebrae, a short mouth cleft reaching below the front edge of the eye, and a low vertical gill slit about as wide as the eye. The IUCN Red List has not evaluated the species.