Longsnout dogfish

Longsnout dogfish
Conservation status
	; Vulnerable (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	Squaliformes
Family:	Centrophoridae
Genus:	Deania
Species:	D. quadrispinosa
Binomial name
	Deania quadrispinosa; (McCulloch, 1915)
	Range of longsnout dogfish (in blue)

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 Illustration

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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

^ 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.

[iucn_status_18_November_2021-1] Finucci, B.; Cheok, J.; Cotton, C.F.; Kulka, D.W.; Neat, F.C.; Rigby, C.L.; Tanaka, S.; Walker, T.I. (2020). "Deania quadrispinosa". IUCN Red List of Threatened Species. 2020: e.T161635A68619468. doi:10.2305/IUCN.UK.2020-3.RLTS.T161635A68619468.en. Retrieved 18 November 2021.

[:0-2] 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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