Actinopterygii (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 75 - 1700 m (Ref. 37039). Subtropical
Western Central Atlantic: roughly 34-22°N, 80-45°W.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.4 cm SL male/unsexed; (Ref. 37039)
Morphology | Morphometrics
soft rays: 39 - 46. Body slender and elongate, color is black; body depth 7.4-12.4% SL. Head length 10.5-15.8% SL. Lower jaw about as long as upper jaw. Long, tapering, protrusible snout. Short chin barbel 18.3% SL, with a single terminal bulb; barbel with 2-3 branches arising from stem. Branches with several to many filaments which often end in bulblets. Terminal bulb twice as long as it is wide and has 1 prominent filament and several minor filaments. Two tightly bound pectoral rays (Ref. 37039).
Maximum length 101 mm SL refers to immature male. Replace with better estimate once available.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Clarke, T.A., 2000. Review of nine species of North Atlantic Eustomias, subgenus Dinematochirus (Pisces: Stomiidae), with the description of two new species. Copeia 2000(1):96-111. (Ref. 36852)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 6.3 - 16.2, mean 11.4 (based on 110 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 (24 of 100) .