Longsnout dogfish

The longsnout dogfish (Deania quadrispinosa) is a little-known deepwater dogfish, found in the Atlantic and Indian Oceans from Namibia to Mozambique and in the South Pacific off southern Australia and New Zealand.[2]

Longsnout dogfish
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Squaliformes
Family: Centrophoridae
Genus: Deania
Species:
D. quadrispinosa
Binomial name
Deania quadrispinosa
(McCulloch, 1915)
Range of longsnout dogfish (in blue)

The longsnout dogfish has 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. It is dark brown and grows to about 114 cm.[2]

Reproduction is ovoviviparous.[2]

This shark lives at depths between 150 and 732 m. It eats bony fish.[2]

Conservation status

In June 2018 the New Zealand Department of Conservation classified the longsnout dogfish as "Data Deficient" with the qualifier "Secure Overseas" under the New Zealand Threat Classification System.[3]

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 quadrispinosa. The IUCN Red List of Threatened Species 2020: e.T161635A686194683. https://www.iucnredlist.org/species/161635/68619468. Downloaded on 18 January 2021.
  2. Carpenter, Kent E.; Bailly, Nicolas (2019). "Deania quadrispinosa (McCulloch, 1915) Longsnout dogfish". Facebook. Retrieved 19 January 2019.
  3. Duffy, Clinton A. J.; Francis, Malcolm; Dunn, M. R.; Finucci, Brit; Ford, Richard; Hitchmough, Rod; Rolfe, Jeremy (2018). Conservation status of New Zealand chondrichthyans (chimaeras, sharks and rays), 2016 (PDF). Wellington, New Zealand: Department of Conservation. p. 10. ISBN 9781988514628. OCLC 1042901090.
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