yunokawai, Grammonus Nielsen [J. G.] 2007:374, Figs. 1-4, 5A [Ichthyological Research v. 54; ref. 29358] Cave in 20 meters depth, at diving point Ohaba No. 1, northeast coast of Ie-shima Island, Okinawa, Ryukyu Islands. Holotype (unique): KPM-NI 5258. •Valid as Grammonus yunokawai Nielsen 2007 -- (Randall & Hughes 2008:143 [ref. 29910], Nielsen & Prokofiev 2010:192 [ref. 30790], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Grammonus yunokawai Nielsen 2007. Bythitidae. Distribution: Western North Pacific: Ryukyu Islands, Japan. Habitat: marine.