A New Hemerocostine Fish, Osopsaron karlik (Percophidae, Trachinoidei) from the Nazca Submarine Ridge

Abstract

A new species of the Hemerocoetinae, Osopsaron karlik is described from11specimens 20-42mm in SL collected on the Nazca Submarine Ridge at300-395m.It differs from other species of Osopsaron, O.verecundum (Jordan et Snyder) of Japan, O.incisum (Gilbert) of Hawaii and O.natalensis Nelson of Natal in number of gill rakers and fin rays, peculiar pigmentation of first dorsal fin, and longer head.