Deania quadrispinosa (McCulloch, 1915)
Longsnout dogfish
Longsnout dogfish
Deania quadrispinosa
photo by FAO

Family:  Centrophoridae (Gulper sharks)
Max. size:  115 cm TL (male/unsexed)
Environment:  bathydemersal; marine; depth range 150 - 1360 m
Distribution:  Southeast Atlantic: off Namibia and off Algoa Bay, South Africa. Indo-West Pacific: off southern Mozambique and Natal, South Africa; Australia and New Zealand (Ref. 6871).
Diagnosis:  Dorsal spines (total): 2-2; Dorsal soft rays (total): 0-0; Anal spines: 0-0; Anal soft rays: 0-0. Extremely long snout, grooved dorsal fin spines, compressed cutting teeth in both jaws, moderately large, pitchfork-shaped denticles, no subcaudal keel on underside of caudal peduncle, first dorsal fin short and high (Ref. 247). Dark brown, grey, or black in color; juveniles with a dark blotch on each dorsal fin (Ref. 26346).
Biology:  A rare (Ref. 26346) and little-known species found on outer continental shelves and upper slopes (Ref. 247). Feeds on bony fishes (Ref. 247). Ovoviviparous (Ref. 50449).
IUCN Red List Status: Vulnerable (VU); Date assessed: 21 November 2019 (A2bd) Ref. (130435)
Threat to humans:  harmless
Country info:  Occurs in Port Hedland, Western Australia and then from Perth, Western Australia eastward to Tasmania and Moreton I. in Queensland (Ref. 6871). Catches not in sufficient quantities to be of interest to fisheries (Ref. 6871). Also Ref. 247, 7300, 26346, 31367, 127228.


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