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); bimargaritoides: From the species name bimargaritatus, adorned with two pearls, and oides, meaning resembling, alluding to the similarity of the terminal barbel filaments of the two species.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 0 - 1200 m (Ref. 11333). Deep-water
Eastern Central Pacific: near the Hawaiian and Marquesas islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.6 cm SL male/unsexed; (Ref. 11333); 11.8 cm SL (female)
Morphology | Morphometrics
soft rays: 38. Two terminal bulbs separated by a short interspace, 0.5-1.1 times the length of distal bulb. Barbel length 44-59% SL. Terminal filament long (21-28% SL), with 2 long branches arising closely together at 6-11 distal-bulb lengths from the distal bulb (at 8.3 - 12.6 cm specimens); all long branches with conspicuous closely-spaced bulblets. Stem of filament with no bulblets and with 1-6 short, slender branches in its basal half. Barbel without melanophores (rarely very sparse on axis of stem). Middorsal paired spots under skin between occiput and dorsal-fin base 8 (Ref. 11333).
Mesopelagic (Ref. 58302).
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. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 8.7 - 18.9, mean 13.5 (based on 41 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
): 4.1 ±0.8 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Vulnerability (Ref. 59153
): Low vulnerability (22 of 100) .