Actinopteri (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Malacosteinae
Etymology: Aristostomias: Greek, aristos = the best + Greek, stoma = mouth (Ref. 45335). More on authors: Regan & Trewavas.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-oceanic. Tropical; 30°N - 34°S, 98°W - 120°W
Eastern Atlantic: Mauritania to Angola. Western Atlantic: Gulf of Mexico south to Brazil, including the Caribbean Sea. Indian Ocean: 5°N to 15°S. Western Pacific: South China Sea and seas of the Indo-Australian Archipelago. Eastern Pacific: 10°N to 10°S between 120°W-166°W.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 26340)
Morphology | Morphometrics
soft rays: 26 - 29. Body moderately elongate and slender. Barbel bearing well-defined bulb. Brown to black in color (Ref. 37039).
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. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 9.3 - 22.1, mean 14.2 °C (based on 852 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.60 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (21 of 100) .