Actinopteri (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Melanostomiinae
Etymology: Grammatostomias: Greek, gramma, atos = signal, mark + Greek, stoma = mouth (Ref. 45335).
More on authors: Goode & Bean.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range ? - 3786 m (Ref. 58018). Deep-water
Atlantic Ocean: west of the Cape Verde in the tropical eastern Atlantic; between 20°N 38°N in the north Atlantic; and between 20°S and 30°S in the Southwest Atlantic. One specimen was recorded from the eastern equatorial Indian Ocean.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.9 cm SL male/unsexed; (Ref. 4468)
Morphology | Morphometrics
Mesopelagic (Ref. 27000).
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. 123201
): 3.3 - 9.9, mean 5 °C (based on 273 cells).
Phylogenetic diversity index (Ref. 82804
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00121 - 0.00787), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.2 ±0.8 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).