Two New Dragonets of the Genus Callionymus (Callionymidae) and a Record of Callionymus corallinus from Miyake-jima, Izu Islands, Japan

Abstract

New dragonets are described from Miyake-jima, Izu Islands, Japan. Callionymus curvispinis sp.nov. is characterized within the variegatus-group of the subgenus Callionymus (Calliurichthys) by the combination of 5-6 curved points on the dorsal side of the preopercular spine, an upcurved main tip of that spine, no filaments in the male's first dorsal fin, no black blotch in the female's first dorsal fin, and a distal black streak in the male's anal fin. Callionymus persicus izuensis subsp.nov., a member of the japonicus-group of the subgenus Callionymus (Calliurichthys), is distinguished from the western Indian Ocean C. persicus persicus by the color pattern of the first dorsal fin (in males distally light, without dark blotches, but with 2-3 faint dark lines (additional to two blackish spots distally on second and third spines); in females plain dark gray, without dark brown blotches, but with a few white spots), by the pectoral fin which reaches to base of 3rd anal fin membrane when laid back, and by the male's caudal fin with only the two median rays extremely elongate. Callionymus corallinus is redescribed and recorded from Miyake-jima (Japan) and New Caledonia, C. beniteguri is recorded from the Izu Islands.