Myctophum obtusirostre
No common name
Collection Details
Specimens
Photos
There are no photos available for this taxon yet.
Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Myctophiformes (Lanternfishes)
Myctophidae (Lanternfishes)
Myctophum
Myctophum obtusirostre
Description
This species account was compiled from
McEachran & Fechhelm (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
Moderately slender and compressed; moderately large mouth; anal fin base much longer than dorsal fin base; snout moderately obtuse; jaws extend to just below to slightly beyond posterior margin of orbit; maxilla moderately expanded posteriorly; posterior opercular margin forms obtuse, blunt angle; posterodorsal margin truncate and serrated; gill rakers 22-25; dorsal fin originates over pelvic fin base with 12 or 13 rays; pectoral fin extends about to VO with 16-18 rays; anal fin originates under or slightly posterior to end of dorsal fin base with 17-19 rays; Dn and Vn small; PVO1-2 and Prc1 in straight line; PLO closer to upper end of pectoral fin base than to lateral line; 5 PO; VLO midway between lateral line and pelvic fin base; 4 VO; SAO form obtuse angle; single Pol immediately below lateral line; AOa number 6-8; AOp number 3-5; 2 Prc separated from AOp series
Distribution
Off New York and New Jersey, in the Gulf of Mexico and the Caribbean Sea, and off the northern and central coasts of South America
Gulf of Mexico
Habitat Associations
Tropical waters; daytime depths 325-750 m, nighttime depths surface-125 m
Biology
Maximum known size 90 mm SL; size at maturity about 75 mm SL
Phylogeny and Morphologically Similar Fishes
Distinguished from other species of the family by the combination of characters described
References
Nafpaktitis et al. 1977
Uyeno et al. 1983
Hulley 1986b
Gartner et al. 1987
Comments On Myctophum obtusirostre