Plectranthias kojii Koeda, Muto, & Wada, 2021
Holotype: ZUMT 62001 (formerly KBF-I 1486), 49.4 mm SL.
Type locality: off Hamahiga-jima Island, near eastern coast of Okinawa-jima Jsland, Ryukyu Archipelago, Japan, in depth of 150 meters.
Illustrations: Koeda, Muto, and Wada, 2021, figs. 1–3.
Counts: D: X, 15. A: III, 7. P: 12 or 13. V: 26 (10 + 16). S: 2. GR: 17 (5 + 12). LL: 30.
Distribution: known only from a depth of 150 meters off Hamahiga-jima Island near the eastern coast of Okinawajima Island, Ryukyu Archipelago, southern Japan.