Diplacanthopoma brachysoma
No common name
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Ophidiiformes (Pearlfishes and others)
Bythitidae (Viviparous Brotulas)
Diplacanthopoma
Diplacanthopoma brachysoma
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, 4.5% predorsal length is 27.7% to 29.1%, compressed, and tapering posteriorly, with preanal length is 46.9% to 52.2%, body depth is 12% to 16.2%, and pelvic fin is 7.4% to 11.4% of SL. Head naked and body completely scaled. Snout is moderately blunt and slightly overhangs jaws. Mouth is slightly oblique and large; upper jaw extends beyond posterior margin of orbit. Eye is large. Villiform teeth occur in jaws, vomer, and palatine. Vomerine tooth patch is inverted-V-shaped. First gill arch has one gill raker and four rudiments on epibranch and three gill rakers and eight or nine rudiments on lower limb. Operculum has single horizontal spine extending to near tip of opercular flap, and single, short, vertical spine directed ventrally. Head is 20.7% to 23.7%, snout length is 4.1% to 4.7%, eye diameter is 3.4%. Pectoral fin is narrow based and of moderate size. Dorsal fin originates above pectoral fin base. Pelvic fins are located close together under preopercula, and each consists of two filamentous rays. Dorsal, caudal, and anal fins are confluent. Scales on body are small and deciduous. Lateral line is indistinct.
Light brown dorsally and pale ventrally.
Distribution
Gulf of Mexico
Gulf of Mexico
Habitat Associations
Western Atlantic, at 439 to 752 m depth
Biology
Maximum known size is about 220 mm SL.
Locally abundant (Ref. 34024).
Reproductive mode: dioecism; fertilization: internal (oviduct); bearers (internal live bearers).
IUCN Red List Status: Least Concern (LC), assessed 2018-10-09. Resilience: High (Preliminary K or Fecundity.).
Phylogeny and Morphologically Similar Fishes
Distinguished from other species of the family by the combination of characters described.
Commercial or Environmental Importance
Fisheries: of no interest.
References
Goode and Bean, 1896
Breder, C.M. and D.E. Rosen (1966) Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p.
Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins (1999) Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO.
Mincarone, M.M., J.G. Nielsen and P.A.S. Costa (2008) Deep-sea ophidiiform fishes collected on the Brazilian continental slope, between 11° and 23°S. Zootaxa 1770:41-64.
Comments On Diplacanthopoma brachysoma