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.
| Longsnout dogfish | |
|---|---|
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Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Order: | Squaliformes |
| Family: | Centrophoridae |
| Genus: | Deania |
| Species: | D. quadrispinosa
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| Binomial name | |
| Deania quadrispinosa (McCulloch, 1915)
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| 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
editIn 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
edit- ^ Finucci, B.; Cheok, J.; Cotton, C.F.; Kulka, D.W.; Neat, F.C.; Rigby, C.L.; Tanaka, S.; Walker, T.I. (2020). "Deania quadrispinosa". IUCN Red List of Threatened Species. 2020: e.T161635A68619468. doi:10.2305/IUCN.UK.2020-3.RLTS.T161635A68619468.en. Retrieved 18 November 2021.
- ^ a b c d Carpenter, Kent E.; Bailly, Nicolas (2019). "Deania quadrispinosa (McCulloch, 1915) Longsnout dogfish". Facebook. Retrieved 19 January 2019.
- ^ 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.