First Japanese Record of the Barred Perchlet Plectranthias fourmanoiri (Actinopterygii: Perciformes: Serranidae) from the Ryukyu Islands

Abstract

A single specimen (31.6 mm standard length) of Plectranthias fourmanoiri Randall, 1980, previously known from Christmas Island (western Indian Ocean) and from the Mariana Islands south to Indonesia and east to the Pitcairn Islands (Pacific Ocean), was collected from Yoron-jima island, Ryukyu Islands, Japan. A full description is given and comparisons made. The specimen represents the first record of P. fourmanoiri from Japan and northernmost record of the species.