Actinopterygii (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335). More on author: Regan, Trewavas.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 0 - 500 m (Ref. 11333). Deep-water
Western Central Atlantic: the Caribbean.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.7 cm SL male/unsexed; (Ref. 11333); 13.3 cm SL (female)
Morphology | Morphometrics
soft rays: 38;
Vertebrae: 69. Two terminal bulbs separated by an interspace (1-1.9 times length of distal bulb). Barbel very long, 95-152% SL in large specimens over 8 cm, 78% at 7 cm. Terminal filament long, up to 25% SL with 1-3 (usually 2) short branches near the base, these branches with tiny bulblets but without swollen tips. Distal bulb 1-1.7 times length of proximal bulb. Axis of stem and external chevron-shaped or roundish striated markings light to moderately pigmented. Middorsal paired spots between occiput and dorsal-fin origin 8 or 9 (Ref. 11333).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gibbs, R.H. Jr., T.A. Clarke and J.R. Gomon, 1983. Taxonomy and distribution of the stomioid fish genus Eustomias (Melanostomiidae), I: subgenus Nominostomias. Smithson. Contrib. Zool. 380:139 p. (Ref. 11333)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 16.4 - 27, mean 21.8 (based on 100 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 ±0.8 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (23 of 100) .