Somniosus
| Somniosus Temporal range:  | |
|---|---|
| Somniosus microcephalus | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Chondrichthyes | 
| Subclass: | Elasmobranchii | 
| Division: | Selachii | 
| Order: | Squaliformes | 
| Family: | Somniosidae | 
| Genus: | Somniosus Lesueur, 1818 | 
| Type species | |
| Squalus microcephalus | |
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 (23 ft), thus ranking among the largest of sharks.