ryukyuensis, Plectranthias Wada [H.], Suzuki [T.], Senou [H.] & Motomura [H.] 2020:2, Figs. 1-5 [Ichthyological Research v. 67 (no. 2); ref. 37270] Off Hamahiga-jima island, Okinawa Islands, Ryukyu Islands, Okinawa Prefecture, Japan, depth 190 meters. Holotype: KPM-NI 50196. Paratypes: KAUM-I 132499 (1) [ex KPM-NI 50195], URB 15117 (2). •Valid as Plectranthias ryukyuensis Wada, Suzuki, Senou & Motomura 2020 -- (Parenti & Randall 2020:30 [ref. 37354], Gill et al. 2021:57 [ref. 38105], Koeda et al. 2021:[7] [ref. 38721], Anderson 2022:572 [ref. 39757]). Current status: Valid as Plectranthias ryukyuensis Wada, Suzuki, Senou & Motomura 2020. Anthiadidae. Distribution: Northwestern Pacific: Ryukyu Islands (Japan). Habitat: marine.