Etmopterus dislineatus

LAST, BURGESS & SÉRET, 2002



Classification: Elasmobranchii Squaliformes Etmopteridae

Reference of the original description
LAST, P.R. & BURGESS, G.H. & SÉRET, B. (2002)
Description of six new species of lantern-sharks of the genus Etmopterus (Squaloidea: Etmopteridae) from the Australasian region. Cybium, 26 (3): 202–223

Image of the original description
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Description :


Citation: Etmopterus dislineatus LAST, BURGESS & SÉRET, 2002: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 11/2018

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Etmopterus dislineatus LAST, BURGESS & SÉRET, 2002 (MNHN 2005-2688, BPS-0449) © Samuel P. Iglésias, Muséum national d’Histoire naturelle, Département Milieux et Peuplements Aquatiques Chondrichthyans from the North-eastern Atlantic and the Mediterranean
Common names
eng Lined lanternshark

Short Description
Body extremely slender. Dorsal and ventral coloration sharply contrasted; fine dark horizontal lines forming series of fine dots and dashes on upper half of body; a dark ventral saddle near middle of caudal peduncle. Head relatively short (usually < 21% TL). Caudal peduncle very elongate (usually > 23% TL). Eyes rather narrow; upper eyelid with pale naked patch. Denticles extremely dense, bristle-like, not arranged in defined rows. Flank-marking base forward of second dorsal-fin spine; its posterior branch longer than anterior branch and extending beyond free rear tip of second dorsal fin; central caudal marking absent. Monospondylous centra 41-45 (Ref. 45056).

Distribution
Western Pacific: central Coral Sea, off Saumarez and Queensland Plateau, Australia. Source: www.gbif.org

Biology
Distinct pairing with embrace [17086]. Found on the continental slope (Ref. 75154).

Size / Weight / Age
44.8 cm TL (male/unsexed; (Ref. 45056)); 40.3 cm TL (female)

Habitat
bathypelagic; marine; depth range 590 - 800 m (Ref. 45056)

Dentition
Description: Three series of functional teeth in upper jaw, one series in lower; teeth dissimilar in upper and lower jaws; upper teeth small, erect, multicuspid; mostly 3 cusps in females (rarely 5), central cusp broad, a third longer than lateral cusps; lateral cusps not particularly longer toward corner of mouth; 7-9 cusps in males, pair of cusps inserted adjacent central cusps smaller than both cusps adjacent in teeth with 9 cusps, otherwise normally descending in height from central cusp; teeth in lower jaw unicuspid, interlocking, blade-like, cusps low, very oblique, lower distal margin extremely short [1384];