Eustomias fissibarbis
No common name
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Stomiiformes
Stomiidae (Dragonfishes)
Eustomias
Eustomias fissibarbis
Description
This species account was compiled from
Composite (multiple sources) (McEachran, J.D. and J.D. Fechhelm. Fishes of the Gulf of Mexico. University of Texas Press, Austin.)
and processed using AI-assisted text extraction.
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Characters
Elongate and very slender, with a long, tapering snout; a relatively short chin barbel bearing a single branch; and abdominal pelvic fins. Body depth is 5.5% to 8.3% and head length is 12.8% to 13.2% of SL. Lower jaw is about as long as upper jaw and is not upturned at tip. Premaxilla has 9 to 10 teeth. Lower jaw has 10 to 11 teeth. Chin barbel is 12% to 16% of SL. Barbel has slender stem, subterminal branch that gives rise to three ornate secondary branches, and terminal bulb bearing filaments. Two lateral secondary branches of subterminal branch are bifurcated, and medial branch bears apical bulb and dendritic appendage. Pectoral fin consists of 2 closely bound rays. Dorsal fin has 22 to 26 rays, and anal fin has 36 to 41 rays. Pelvic fin has 7 rays. IP number 7, PV number 27 to 29, and VAV number 13 to 15. OV number 26 to 29, VAL number 14 to 16, and AC number 19 to 21. Preorbital and suborbital luminous organs are absent. Po is present.
Color is black. Stem of barbel is lightly to darkly pigmented, and terminal bulb is lightly to darkly pigmented along proximal one-half of length.
Distribution
In the western Atlantic it occurs from Bermuda, the Bahamas, the Gulf of Mexico, and the Caribbean Sea.
Habitat Associations
Marine. pelagic-oceanic.
Biology
Food consists of myctophids.
Maximum known size is 130 mm SL.
Mesopelagic (Ref. 27000). Also Ref. 58302.
Reproductive mode: dioecism; fertilization: external; nonguarders (open water/substratum egg scatterers); parental care: none.
IUCN Red List Status: Least Concern (LC), assessed 2013-05-12. Resilience: Medium (Preliminary K or Fecundity.).
Phylogeny and Morphologically Similar Fishes
It is distinguished from the other species of the family by the combination of characters described.
Commercial or Environmental Importance
Fisheries: of no interest.
References
Morrow and Gibbs 1964
Rass 1971
Sutton and Hopkins 1996, in press
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.
Clarke, T.A. (2000) Review of nine species of North Atlantic Eustomias, subgenus Dinematochirus (Pisces: Stomiidae), with the description of two new species. Copeia 2000(1):96-111.
Sutton, T.T. and T.L. Hopkins (1996) Trophic ecology of the stomiid (Pisces: Stomiidae) fish assemblage of the eastern Gulf of Mexico: strategies, selectivity and impact of a top mesopelagic predator group. Mar. Biol. 127:179-192.
Bogutskaya, N.G. (2007) Preliminary assignment of coordinates to type localities in the Catalog of Fishes. Unpublished dbf file.
Patzner, R.A. (2008) Reproductive strategies of fish. pp. 311-350. In Rocha, M.J., A. Arukwe and B.G. Kapoor (eds). Fish reproduction: cytology, biology and ecology. Science Publisher, Inc. Oxford. 631 p.
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