Arrowhead dogfish

The arrowhead dogfish (Deania profundorum) is a small little known deepwater dogfish of the family Centrophoridae.

Arrowhead dogfish
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Squaliformes
Family: Centrophoridae
Genus: Deania
Species:
D. profundorum
Binomial name
Deania profundorum
Range of arrownose dogfish (in blue)
Synonyms

Deania elegans Springer, 1959

Physical characteristics

The arrowhead dogfish has an extremely long angular snout, no anal fin, small first dorsal and long rear dorsal spines, and pitchfork-shaped dermal denticles. The first dorsal fin is short and placed high on the back. This is the smallest of the genus Deania, with a maximum length of only 76 cm.

Distribution

It is found in the Pacific Ocean around the Philippines, in the Western Atlantic Ocean off of the Carolinas, in the Eastern Atlantic all along Africa's west coast, and in the Indian Ocean off South Africa.

Habits and habitat

This shark is a little-known deepwater species that lives at depths between 300 and 1,785 m. It is ovoviviparous with five to seven pups per litter. It eats bony fish, squid, and crustaceans.

References
  1. Finucci, B., Cheok, J., Cotton, C.F., Kulka, D.W., Neat, F.C., Rigby, C.L., Tanaka, S. & Walker, T.I. 2020.. Deania profundorum. The IUCN Red List of Threatened Species 2020: e.T161551A44016720. https://www.iucnredlist.org/species/161551/44016720. Downloaded on 18 January 2021
  • Froese, Rainer and Pauly, Daniel, eds. (2005). "Deania profundorum" in FishBase. 09 2005 version.
  • FAO Species Catalogue Volume 4 Parts 1 and 2 Sharks of the World
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