Teleostei (teleosts) >
Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335); appositus: From the Latin appositus, perfect participle meaning placed beside, referring to the contiguous terminal bulbs of the barbel.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-oceanic; depth range 0 - 200 m (Ref. 11333). Deep-water
North and Central Pacific.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 13.6 cm SL male/unsexed; (Ref. 11333)
Dorsal soft rays (total): 22; Anal soft rays: 36; Vertebrae: 67. Two contiguous terminal bulbs. Barbel 49-57% SL. Terminal filament short, without branches, 2-5% SL. Distal bulb 0.8-1.3 times length of proximal bulb. Axis of stem unpigmented in the small specimens pigmented in proximal 2/3 in the large one. Patchy external pigment in the distal 1/3 of the large specimen. Axis of filament unpigmented. External chevron-shaped or roundish striated areas on stem unpigmented. Middorsal paired spots between occiput and dorsal-fin origin 7 or 8 (Ref. 11333).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gibbs, R.H. Jr., T.A. Clarke and J.R. Gomon, 1983. Taxonomy and distribution of the stomioid fish genus Eustomias (Melanostomiidae), I: subgenus Nominostomias. Smithson. Contrib. Zool. 380:139 p. (Ref. 11333)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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