Apristurus melanoasper

IGLÉSIAS, NAKAYA & STEHMANN, 2004


Black roughscale catshark
Classification: Elasmobranchii Carcharhiniformes Pentanchinae

Reference of the original description
IGLÉSIAS, S.P. & NAKAYA, K. & STEHMANN, M. (2004)
Apristurus melanoasper, a new species of deep-water catshark from the North Atlantic (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Cybium, 28 (4): 345-356

Image of the original description
Image in copyright.

Synonyms / new combinations and misspellings
Apristurus cf. melanoasper



Description:


Citation: Apristurus melanoasper IGLÉSIAS, NAKAYA & STEHMANN, 2004: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 06/2013

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Common names
fra \(T\) Holbiche noire, eng Black roughscale catshark

Short Description
Diagnosis: Body uniformly black, slightly brownish in larger specimens. Dermal denticles large and giving a rough texture to the skin. Upper labial furrows longer than the lower ones. First dorsal fin only slightly smaller than the second dorsal fin, originating from above anterior third to middle of the pelvic fin base. Second dorsal fin insertion just before level of anal fin insertion. Interorbital space 1.9-3.5 times eye horizontal diameter. Abdomen between pectoral fin tip and pelvic fin origin 1.3-2.5 times pectoral fin width. Spiral valves of the intestine 19-23 (mostly 21-22). Monospondylous + precaudal diplospondylous vertebrae 36-43 + 26-32 (often 38-40 + 28-30). Dermal denticles on tongue and palate absent (Ref. 56212).

Distribution
Western North Atlantic: slope, off northern U.S. and northeast of North Atlantic (off France, Ireland and British Isles).

Size / Weight / Age
76.1 cm TL (male/unsexed; (Ref. 56212)); 73.2 cm TL (female); max. published weight: 1,288 g (Ref. 56212); max. published weight: 1,275.0 g

Habitat
bathypelagic; marine; depth range 512 - 1520 m (Ref. 56212)