| Species | Name Used in Reference |
|---|---|
| Somniosus antarcticus Whitley, 1939 | Somniosus antarcticus (p. 8) |
| Somniosus cheni Hsu, Lin & Joung, 2020 | Somniosus cheni (p. 2;fig.2;tab.1-2) |
| Somniosus longus (Tanaka, 1912) | Somniosus longus (p. 1-2) |
| Somniosus microcephalus (Bloch & Schneider, 1801) | Somniosus microcephalus (p. 1-2) |
| Somniosus pacificus Bigelow & Schroeder, 1944 | Somniosus pacificus (p. 1-2) |
| Somniosus rostratus (Risso, 1827) | Somniosus rostratus (p. 1-2) |