Actinopterygii (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335).
Environment / Climate / Range
Marine; pelagic-oceanic; depth range 0 - 1800 m (Ref. 37039). Deep-water, preferred ?
Western Atlantic: off the Bahamas and in the Gulf of Mexico and the Caribbean Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.1 cm SL male/unsexed; (Ref. 37039)
Morphology | Morphometrics
soft rays: 35 - 37. Body slender and elongate, color black; body depth 6.3-8.7% SL. Head length 13.3% SL. Lower jaw about equal to length of upper jaw and is not upturned at tip. Long, tapering, protrusible snout. Chin barbel long with a very long terminal bulb; 7.6-9.3% SL. Barbel with slender stem and an elongated terminal bulb with minute terminal filament. Bulb is 4.3-7% SL and 6 times longer than it is wide. Deep ventral groove absent. Pectoral fins free. Preorbital and suborbital luminous organs absent (Ref. 37039).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
McEachran, J.D. and J.D. Fechhelm, 1998. Fishes of the Gulf of Mexico. Volume 1: Myxiniformes to Gasterosteiformes. University of Texas Press, Austin. 1112p. (Ref. 37039)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
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), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.1 ±0.7 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 (19 of 100) .