Slender Hatchetfish

Argyropelecus affinis is a species of ray-finned fish in the family Sternoptychidae, described by Garman in 1899, found in the tropical and subtropical Atlantic, Indian and Pacific Oceans. Common names for this fish include Pacific hatchetfish, deepsea hatchetfish and slender hatchetfish. It inhabits the upper mesopelagic zone between 350 and 600m during the day, and between 100m and 350m during the night and is either non-migratory or performs short daily vertical migrations.

Argyropelecus est un genre de poissons de mer actinoptérygiens, de la famille des Sternoptychidae. Description Répartition Ce genre est présent dans tous les océans. Taxinomie Le nom valide complet (avec auteur) de ce taxon est Argyropelecus Cocco, 1829.

Argyropelecus affinis es una especie de pez del género Argyropelecus. ​​​​ Descripción Presenta 8-9 radios blandos dorsales, 12-14 radios blandos anales, 38-41 vértebras, 10 radios branquiostegales, ausencia de espinas dorsales y anales. Cuenta con una boca vertical y ojos tubulares, la aleta dorsal presenta 9 radios blandos cortos y también posee una aleta dorsal adiposa.