Etmopterus caudistigmus

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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Types
Etmopterus caudistigmus
Holotype: MNHN: 1997-3514; Paratype: MNHN: 1997-3516; MNHN: 1997-3515;


Description :


Citation: Etmopterus caudistigmus LAST, BURGESS & SÉRET, 2002: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2018

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Short Description
Body moderately firm, slightly compressed body. Dorsal and ventral coloration dark; fins dark distally. Caudal peduncle rather elongate (ca 2.2 times greatest horizontal length of D1 including spine, about 1/5 TL). Mouth relatively broad, 1.4 times eye length. Upper eyelid with pale naked patch. Denticles short, robust, arranged in regular rows. Flank-marking posterior branch truncate and merging ventrally with post-pelvic marking. Anterior part of caudal base marking very broad, enveloping ventral surface and extending to flanks; central caudal oval, well separated from caudal base marking; upper caudal marking straight . Monospondylous centra 40 (Ref. 45056).

Distribution
Western Central Pacific: New Caledonia.

Biology
Ovoviviparous, distinct pairing with embrace [17086].

Size / Weight / Age
31.4 cm TL (male/unsexed; (Ref. 45056)); 33.9 cm TL (female)

Habitat
bathypelagic; marine; depth range 638 - 793 m (Ref. 45056)

Dentition
Diagnosis: Upper teeth of mature males large with 5 slender cusps; Description: three series of functional teeth in upper jaw, one series in lower; teeth dissimilar in upper and lower jaws; upper teeth moderate, erect, multicuspid; five cusps in males, central cusp very long, slender, much larger than those adjacent; three cusps in females, central cusp relatively larger near symphysis, 2-3 times longer than lateral pair; teeth in lower jaw unicuspid, interlocking, blade-like, cusps low, very oblique, lower distal margin extremely short [1384]

Remarks
shark-references Species-ID=2164;