A record of a polynemid fish, Polydactylus sextarius, from southern Japan (Perciformes: Polynemidae)

Abstract

Three specimens (128-144.5 mm in standard length) of a polynemid fish, Polydactylus sextarius (Bloch & Schneider), collected by a large set net off the eastern side of Ooshima Island, Meitsu, Nango, Miyazaki, Japan, represent the first reliable record from Japan and the northernmost record of the species. Polydactylus sextarius is characterized as follows: six pectoral filaments, almost all pectoral fin rays branched, pectoral fin longer than pelvic fin, vomer without teeth and a large black spot anteriorly on the lateral line.