Actinopteri (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Malacosteinae
Etymology: Aristostomias: Greek, aristos = the best + Greek, stoma = mouth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 25 - 800 m (Ref. 58302), usually - m (Ref. ). Deep-water; 0°C - ; 35°N - 35°S, 98°W - 154°W
Eastern Atlantic: one record at 30°45'40"N, 25°47'W. Western Atlantic: between 35°and 6°N, including the Gulf of Mexico and Caribbean Sea; one record 34°S, 49°W (Ref. 6684). Indian Ocean: at 15°S. Western Pacific: north of western New Guinea, record at 22°N 172°E. Eastern Central Pacific: Hawaiian Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.2 cm SL male/unsexed; (Ref. 13608)
Mesopelagic species (Ref. 27000). Also Ref. 58302.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Goodyear, R.H., 1990. Malacosteidae. p. 338-340. 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. 4469)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 10.6 - 22.3, mean 15.7 °C (based on 693 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5156 [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 ±0.73 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (29 of 100) .