Genus Deania

Brier shark - The birdbeak dogfish has a very long narrow snout, no anal fin, two long and low dorsal fins with grooved spines, small rectangular pectoral fins, and pitchfork-like denticles.

Rough longnose dogfish - Rough longnose dogfish have an extremely long snout, no anal fin, small grooved dorsal spines, and rough pitchfork-shaped dermal denticles.

Arrowhead dogfish - Arrowhead dogfish have extremely long angular snouts, no anal fin, small first dorsal and long rear dorsal spines, and pitchfork shaped dermal denticles.

Longsnout dogfish - Longsnout dogfish have an extremely long angular snout, no anal fin, dorsal fins of similar size with the first placed high on the back and the second having a longer rear free tip, and pitchfork shaped dermal denticles.

Order : Squaliformes
Family : Centrophoridae
Genus : Deania