Polymetme corythaeola
No common name
NS
GNR
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Stomiiformes
Phosichthyidae (Lightfishes)
Polymetme
Polymetme corythaeola
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
Premaxillary teeth biserial, outer row straight and unequal in length, inner row curved inwardly; maxilla teeth widely spaced, erect, and larger posteriorly; vomer with 1-3 teeth per side, palatine with 3-6 teeth; gill filaments moderate, not fused at base; 16 or 17 gill rakers on first arch; 13 branchiostegal rays, 4 on epihyal; dorsal adipose fin short-based; anus closer to anal fin origin than pelvic fin insertion; dorsal fin origin anterior to anal fin origin, dorsal fin base less than half anal fin base; 12-14 dorsal fin rays, 30-33 anal fin rays; last dorsal and anal fin rays split to base; photophores at symphysis of lower jaw; So anteroventral to eye; OP 3; BR 9 or 10; IV 21, tenth elevated; VAV 8; OA 17; AC 24 or 25, 17 or 18 over anal fin base; glandular tissue on iris; 43-45 vertebrae
Dark dorsally, silvery on flank
Distribution
Off eastern US seaboard from about 40°N to southern Florida, Gulf of Mexico, Caribbean Sea
Gulf of Mexico
Habitat Associations
Tropical to subtropical seas, 165-760 m, generally 300-500 m
Biology
216 mm SL
Benthopelagic off continental and island slopes and sea-mounts (Ref. 4778). Probably does not exhibit diel vertical migrations (Ref. 4778). Minimum depth reported from Ref. 4778.
Reproductive mode: dioecism; fertilization: external; nonguarders (open water/substratum egg scatterers); parental care: none.
IUCN Red List Status: Least Concern (LC), assessed 2019-07-16. Resilience: High (Preliminary K or Fecundity.).
Phylogeny and Morphologically Similar Fishes
Distinguished from other family members by combination of characters
References
Grey 1964
Rass 1971
Murdy et al. 1983
Badcock 1984c
Schaefer et al. 1986a
Boschung 1992
Schaefer, S., R.K. Johnson and J. Badcock (1986) Photichthyidae. p. 243-247. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin.
Quéro, J.-C., J.C. Njock and M.M. de la Hoz (1990) Photichthyidae. p. 343-348. 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.
Badcock, J. (1984) Photichthyidae. p. 318-324. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and the Mediterranean. volume 1. UNESCO, Paris.
Uyeno, T., K. Matsuura and E. Fujii (eds.) (1983) Fishes trawled off Suriname and French Guiana. Japan Marine Fishery Resource Research Center, Tokyo, Japan. 519 p.
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.
Parin, N.V. and O.D. Borodulina (1990) Survey of the genus Polymetme (Photichthyidae) with a description of two new species. J. Ichthyol. 30(6):108-121.
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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