Abstract
Serranocirrhitus latus Watanabe and Isobuna japonica (Steindachner), both described as new genera and species of Cirrhitidae, are shown to be serranid fishes of the subfamily Anthiinae. S.latus is regarded as a valid genus and species; Dactylanthias mcmichaeli Whitely is a junior synonym. I.japonica is revealed as an earlier name for a species currently identified as Sayonara satsumae Jordan et Seale.The genera Isobuna Jordan and Sayonara Jordan et Seale are placed in the synonymy of Plectranthias Bleeker. S. latus and P. japonicus are redescribed. S. latus is now known from the Ryukyu Islands, Lihou Atoll and Willis Island in the Coral Sea, Palau Islands, Fiji Islands, New Caledonia, Loyalty Islands, New Hebrides, and Celebes. The range of P.japonicus is extended from Japan to Luzon.
