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Elasmobranchii (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Etmopteridae (Lantern sharks)
Etymology: Etmopterus: Greek, ethmos, -ou = sieve or ethmoides bone + Greek, pteron = wing, fin (Ref. 45335); caudistigmus: Name refers to the presence of an oval-shaped caudal-fin marking.
More on authors: Last, Burgess & Séret.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; pelagic-oceanic; depth range 638 - 793 m (Ref. 45056). Deep-water

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Western Central Pacific: New Caledonia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 31.4 cm TL male/unsexed; (Ref. 45056); 33.9 cm TL (female)

Short description Identification keys | Morphology | Morphometrics

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).

Ovoviviparous (Ref. 205).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Ovoviviparous, distinct pairing with embrace (Ref. 205).

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Last, P., G.H. Burgess and B. Séret, 2002. Description of six new species of lantern-sharks of the genus Etmopterus (Squaloidea: Etmopteridae) from the Australasian region. Cybium 26(3):203-223. (Ref. 45056)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 19 June 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

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Estimates based on models

Preferred temperature (Ref. 123201): 2.2 - 3.5, mean 2.6 °C (based on 858 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00380 (0.00194 - 0.00745), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.1 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Low vulnerability (24 of 100).

Etmopterus caudistigmus Last, Burgess & Séret, 2002