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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335); grandibulbus: Named for its large distal bulb; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino; distribuzione batimetrica 0 - 112 m (Ref. 58018). Subtropical
Southeast Atlantic: west of Cape Town, South Africa.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL maschio/sesso non determinato; (Ref. 3984)
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 26; Spine anali: 0; Raggi anali molli: 40; Vertebre: 67. Two terminal bulbs separated by a short interspace, shorter than length of distal bulb. Barbel 68% SL. Terminal filament long (20%), with a series of 5 long branches beginning a short distance (a distal bulb length) from bulb, all with small bulblets, none of which approaches the diameter of the filament. All branches with 1 or more short branches. Stem axis peppered with melanophores; lightly pigmented on axis between bulbs and in proximal part of filament. Number of middorsal paired spots under skin uncertain (obscure and diffuse in holotype) (Ref. 11333).
Known based on a single specimen taken at a depth between 0-112 m.
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Gibbs, R.H. Jr., 1986. Melanostomiidae. p. 236-243. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3984)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Pesca: di nessun interesse
Strumenti
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Estimates based on models
Preferred temperature (Ref.
123201): 10.3 - 18.1, mean 16.9 °C (based on 10 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [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 ±0.8 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).