Leptostomias bilobatus
No common name
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Stomiiformes
Stomiidae (Dragonfishes)
Leptostomias
Leptostomias bilobatus
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 short, blunt, nonprotrusible snout; abdominal pelvic fins; body depth 6% to 9% and head length 10.9% to 12.3% of SL; lower jaw neither longer than upper jaw nor upturned at tip; premaxilla with 7 teeth; lower jaw with 10 teeth; chin barbel 65% to 75% of SL with specific structure; pectoral fin with 9 unbranched rays of equal length; dorsal and anal fin bases about equal length; dorsal fin with 20 or 21 rays, anal fin with 25 or 26 rays; pelvic fin with 7 rays; specific photophore counts (IP, PV, VAV, OV, VAL, AC); preorbital and suborbital luminous organs absent; Po small and roundish.
Color is black.
Distribution
Gulf of Mexico in the western Atlantic
Habitat Associations
Marine. pelagic-oceanic.
Biology
Food consists of myctophids.
Maximum known size is 110 mm SL.
Reproductive mode: dioecism; fertilization: external; nonguarders (open water/substratum egg scatterers); parental care: none.
IUCN Red List Status: Least Concern (LC), assessed 2018-10-12. Resilience: High (Preliminary K or Fecundity.).
Phylogeny and Morphologically Similar Fishes
Distinguished from other species of the family by the combination of characters described.
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.
McEachran, J.D. and J.D. Fechhelm (1998) Fishes of the Gulf of Mexico. Volume 1: Myxiniformes to Gasterosteiformes. University of Texas Press, Austin. 1112p.
Bigelow, H.B., D.M. Cohen, M.M. Dick, R.H. Gibbs Jr., M. Grey, J.E. Morrow Jr., L.P. Schultz and V. Walters (1964) Fishes of the western North Atlantic. Part four. New Haven, Sears Found. Mar. Res., Yale Univ.
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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