A single specimen of the serranid fish Pseudanthias hutomoi (Allen and Burhanuddin, 1976), previously reported in the western central Pacific, from Brunei, Indonesia, Papua New Guinea, the Philippines, and Saipan, was recently collected from Ishigaki-jima Island, Ryukyu Archipelago, being the first record of the species from Japan. Pseudanthias hutomoi differs from its congeners in having the following combination of characters: 13–15 dorsal-fin soft rays (usually 14); 6 or 7 anal-fin soft rays; 34–37 gill rakers; scale rows between the lateral-line and middle of dorsal-fin spinous portion 2–3.5; 42–47 pored lateral-line scales; greatest body depth 2.9–3.0 in standard length; head length 2.8–3.2 in standard length; third dorsal spine subequal to others; anal-fin tip acute; and caudal fin lunate. The new standard Japanese name “Awayuki-hanadai” is proposed for the species based on the specimen collected from Ishigaki-jima Island, refers to the distinct white spots on the dorsum of females, which are obscure in males.
