Somniosus

Somniosus is a widely distributed genus of deepwater dogfish sharks in the family Somniosidae. Several members of the genus are believed to attain lengths up to , thus ranking among the largest of sharks.

==Species== Somniosus antarcticus Whitley, 1939 (southern sleeper shark) Somniosus cheni Hsu, Lin, & Joung, 2020 (Taiwan sleeper shark) †Somniosus gonzalezi Welton & Goedert, 2016 – fossil, Oligocene Somniosus longus Tanaka, 1912 (frog shark) Somniosus microcephalus (Bloch & J. G. Schneider, 1801) (Greenland shark) Somniosus pacificus Bigelow & Schroeder, 1944 (Pacific sleeper shark) Somniosus rostratus A. Risso, 1827 (little sleeper shark) Somniosus sp. A Not yet described (longnose sleeper shark)