Elasmobranchii (sharks and rays) > Squaliformes
(Sleeper and dogfish sharks) > Etmopteridae
Etymology: Etmopterus: Greek, ethmos, -ou = sieve or ethmoides bone + Greek, pteron = wing, fin (Ref. 45335); dianthus: From the pinkish upper body coloration..
More on authors: Last, Burgess & Séret.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-oceanic; depth range 200 - 880 m (Ref. 106604). Deep-water
Western Pacific: Australia and New Caledonia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.9 cm TL male/unsexed; (Ref. 45056); 40.8 cm TL (female)
Morphology | Morphometrics
Vertebrae: 79 - 85. Body soft fusiform, stout, subcylindrical. Dorsal and ventral coloration moderately contrasted; upper surface pinkish before preservation. Head relatively short (usually < 21% TL). Mouth broad, subequal to eye length. Eyes narrow; upper eyelid without pale naked patch. First dorsal fin well behind rear tip of pectoral fin. Caudal peduncle short (ca 1.6-2 times greatest horizontal length of D1 including spine, <1/6 of TL). Denticles minute, bristle-like, mostly randomly arranged. Flank-marking with posterior branch truncate; anterior part of caudal base marking not extended anteriorly; central caudal marking absent. Monospondylous centra 40-43 (Ref. 45056).
Ovoviviparous (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing with embrace (Ref. 205).
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. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 12.9 - 19.4, mean 15.7 °C (based on 32 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00189 - 0.00731), 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 to moderate vulnerability (31 of 100).