This species is only known from Izu Ocean Park, where it has been collected and photographed on rocky reefs at depths of 48-60 meters
Dorsal spines (total): 10; Dorsal soft rays (total): 15; Anal spines: 3; Anal soft rays: 7; Vertebrae: 26. This species is distinguished from its congeners by the following set of characters: D X,5, fourth dorsal-fin spine longest and no fleshy flaps on dorsal-fin spines; pectoral rays 13, all unbranched; branched caudal-fin rays 8 + 7; lateral line scales 28 (including intermittent and terminal pitted scales); circumpeduncular scales 12; preopercle without antrorse spines or serrations ventrally, with 2–3 weak serrations or crenulations posteriorly .Cross section: compressed.
Behavioural data for Hinomaru perchlet is currently being reviewed.
Marine; reef-associated; depth range 48 - 60 m . Subtropical Northwest Pacifc: Japan.
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