Actinopteri (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Melanostomiinae
Etymology: Leptostomias: Greek, leptos = thin + Greek, stoma = mouth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 0 - 5000 m. Deep-water; 51°N - 41°S, 98°W - 154°W
Eastern Atlantic: southern Ireland to Mauritania, Liberia, Angola and off South Africa. Western Atlantic: USA south to Cuba including Gulf of Mexico, and from Brazil to Argentina. Also found in the Indian and Pacific Oceans.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 37.3 cm SL male/unsexed; (Ref. 4468)
Mesopelagic species (Ref. 6808). Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gibbs, R.H. and M.A. Barnett, 1990. Melanostomiidae. p. 308-337. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4468)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.3 - 7.8, mean 3.9 °C (based on 3090 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00120 - 0.00797), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 4.2 ±0.73 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Moderate vulnerability (36 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .