Teleostei (teleosts) >
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
Ecology
Marine; pelagic-oceanic. Subtropical
Atlantic Ocean: Between 29° and 06°N in the tropical eastern Atlantic; at 35°S 40°W in the Southwest Atlantic; from the Gulf of Mexico and southern Sargasso Sea in the western Atlantic. Also tentatively recorded from the western Indian Ocean.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm SL male/unsexed; (Ref. 37039)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 20 - 21; Anal soft rays: 25 - 26. Body elongate and very slender with a short, blunt nonprotrusible snout. Long chin barbel bearing two long filaments on stem and two short filaments on bulb (Ref. 37039). Body marked with vertical rows of tiny light organs. Dark brown, probably black (Ref. 37473).
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. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 23.9 - 28, mean 26.8 °C (based on 262 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00116 - 0.00786), 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 ±0.73 se; based on food items.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).