Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335); mesostenus: From the constricted terminal bulb of this species.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 0 - 1643 m (Ref. 11333). Deep-water
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Eastern Indian Ocean.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.5 cm SL male/unsexed; (Ref. 11333)
Morphology | Morphometrics
soft rays: 34;
Vertebrae: 67. A single, very long terminal bulb, its length more than twice its greatest width, constricted at its midlength, with a short, very slender terminal projection included in a broad distal extension of the outer covering membrane of the bulb. Bulb and projection combined 3.2% SL. Barbel short, 42.5% SL. Axis of stem unpigmented. External chevron-shaped or roundish striated areas unpigmented, becoming almost contiguous distally. No inclusions in stem. Middorsal paired spots between occiput and dorsal-fin origin 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
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg 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), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.0 ±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 (15 of 100) .