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Myctophum affine
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Myctophiformes
Family:	Myctophidae
Genus:	Myctophum
Species:	M. affine
Binomial name
	Myctophum affine; (Lütken, 1892)
Synonyms
	Scopelus affinis Lütken, 1892;

Myctophum affine, the metallic lanternfish, is a species of lanternfish native to the Atlantic Ocean. Myctophum affine grows to a length of 7.9 centimetres (3.1 in) SL.

Description

Phenotypic observations of Myctophum affine presume that males carry dorsal luminous scales, while females of the species have luminous ventral scales. It is stated that males typically possess seven or eight luminous dorsal scales, while females usually have three to four luminous ventral scales. The luminous scales of male Myctophum affine begin to develop at smaller sizes than those of the female (Gibbs, 1957).

References

Froese, Rainer; Pauly, Daniel (eds.). "Myctophum affine". FishBase. April 2012 version.
Gibbs, R. H. (1957). A taxonomic analysis of Myctophum affine and M. nitidulum, two lantern-fishes previously synonymized, in the western North Atlantic. Deep Sea Research (1953), 4(1), 230–237. Science Direct. https://doi.org/10.1016/0146-6313(56)90055-7
Hulley, P.A., 1990. Myctophidae. p. 398-467. 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.