Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Squaliformes (Bramble, sleeper and dogfish sharks) > Etmopteridae (Lantern sharks)
Etymology: Etmopterus: Greek, ethmos, -ou = sieve or ethmoides bone + Greek, pteron = wing, fin (Ref. 45335); pseudosqualiolus: From its similarity of general body shape with squaloid sharks.. More on author: Last.

Environment / Climate / Range Ecology

Marine; bathypelagic; depth range 668 - 1170 m (Ref. 45056). Deep-water

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 45.3 cm TL male/unsexed; (Ref. 45056); 41.4 cm TL (female)

Short description Morphology | Morphometrics

Body cigar-shaped; deep head conical with a short bulbous snout; preoral length 7.3-8.2 % TL. Eye almost round with a small opalescent lunate patch on upper eyelid margin. Pectoral fins small, rear tip about cornea diameter in front of D2 origin. Dorsal and ventral coloration dark; white conspicuous pineal blotch small and triangular. Caudal peduncle short (14.8-16.6% TL). Upper teeth of mature males usually with 7 cusps, others 9-11, in separated rows; central cusps greatly expanded, about 2 times longer than those adjacent. Denticles small, with a single erected, slightly curved cusps, arranged in irregular rows. Anterior branch of pelvic marking long and slender, posterior branch truncated. Precaudal marking with very long finger-like extensions reaching to central caudal fin. Monospondylous centra 46-47 (Ref. 45056).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri

Western Pacific: Norfolk Ridge and Lord Howe Ridge off New Caledonia.

Ovoviviparous (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

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.

IUCN Red List Status (Ref. 90363)

Least Concern (LC)

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FisheriesWiki |

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Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00341 (-0.16422 - 0.17104), b=3.11870 (3.02053 - 3.21688), based on LWR estimates for this family-BS (Ref. 93245).

Trophic Level (Ref. 69278): 4.2 ±0.5 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).

Vulnerability (Ref. 59153): Moderate vulnerability (39 of 100) .

Price category (Ref. 80766): Unknown.

Etmopterus pseudosqualiolus Last & , Burgess & Séret