Psednos cathetostomus Chernova & Stein, 2002 .

Doormouth Snailfish. To 4.3 cm (1.7 in) SL. Three specimens known. Patton Escarpment, southern California and San Clemente Basin, northern Baja California. Probably mesopelagic or bathypelagic; depth: collected in midwater; depth information not clear, characterized by authors from two specimens as 309–338 m (1,014 –1,109 ft) over bottom depth of 3,961 m (12,995 ft). All in Chernova and Stein (2002).