abyssus, Rhinecanthus Matsuura [K.] & Shiobara [Y.] 1989:315, Fig. 1 [Japanese Journal of Ichthyology v. 36 (no. 3); ref. 13563] Off northeastern coast of Kume-jima Island, Ryukyu Islands, Japan, 26°21.0'N, 126°50.5'E, depth 150 meters. Holotype: NSMT-P 30093. Paratypes: MSM-89-37 (1), NSMT-P 30661 (1). •Valid as Rhinecanthus abyssus Matsuura & Shiobara 1989 -- (Nakabo 2000:1400 [ref. 25182], Matsuura 2001:3917 [ref. 26315], Nakabo 2002:1400 [ref. 26193], Matsuura 2014:7 [ref. 33576], Matsuo & Hibino 2021:9 [ref. 38478], Parenti 2021:658 [ref. 38921]). Current status: Valid as Rhinecanthus abyssus Matsuura & Shiobara 1989. Balistidae. Distribution: Northwestern Pacific: Ryukyu Islands and Yaeyama Islands (southern Japan). Habitat: marine.