Common names from other countries
Actinopterygii (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335). More on authors: Regan & Trewavas.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 50 - 150 m (Ref. 58302). Deep-water; 40°N - 49°S, 98°W - 154°W
Atlantic and Pacific: between 35-40°N and 30-35°S, primarily in boundary currents or equatorial waters; generally absent from gyres.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 11 - 14.4 cm
Max length : 21.2 cm SL male/unsexed; (Ref. 4468)
soft rays: 36 - 43. Barbel with three branches arising from stem; medial branch stout, bulbous and with distal filaments barely reaching to barbel tip; lateral branches tapering, extending well beyond end of barbel (except in small specimens); terminal bulb unpigmented and elongated, occupying most of distal barbel, tightly constricted distally into spheroidal terminal section; terminal filament or single-based group of filaments arising ventrally from constriction.
Epi- and mesopelagic (Ref. 58302).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gibbs, R.H. and M.A. Barnett, 1990. Melanostomiidae. p. 308-337. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4468)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 15.7 - 27.1, mean 23.3 (based on 442 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.2 ±0.73 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (32 of 100) .