Redescription of the trichiurid fish, Trichiurus nitens Garman, 1899, being a valid of species distinct from T. lepturus Linnaeus, 1758 (Perciformes: Trichiuridae)

Abstract

Trichiurus nitens Garman, 1899 was reassessed on the basis of the syntype and non-type specimens, and considered to represent a valid species. Although difficult to distinguish from T. lepturus Linnaeus, 1758 in most head and body proportions, T. nitens differs from the former in having lower number of dorsal fin rays (range 121–124 vs. range 132–135), caudal fin vertebrae (116–120 vs. 128–134), total vertebrae (153–156 vs. 168–173), larger dermal eye opening (mean 18.8% vs. 16.1% of HL), shorter upper jaw length (36.2% vs. 38.6% of HL), and shorter snout length (32.9% vs. 34.9% of HL). T. nitens is currently known only inhabit from the Northeast Pacific to Southeast Pacific (from California, Mexico, Panama to Peru).

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