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 7 m, 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)