Frog shark (Somniosus longus) is a ray-finned fish of the family Somniosidae. It inhabits marine (saltwater) waters. This species can reach a maximum total length of 110 cm. It occurs at depths between 250 and 1160 metres. With a trophic level of 4.1, it is a mid-level predator. It is assessed as Data Deficient on the IUCN Red List.
Vertebrae: 77 - 79. Somniosus longus is distinguished from S. rostratus in having a relatively longer second dorsal fin where overall length is almost equal to first dorsal fin 91-100% (vs. 76-88%); slightly larger eye with horizontal diameter more than 37% (mean 46%) of length from snout tip to eye (vs.
Behavioural data for Frog shark is currently being reviewed.
Diet information for Frog shark is currently being compiled.
Reproduction data for Frog shark is currently being compiled.
Marine; bathydemersal; depth range 250 - 1160 m . Subtropical
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