prasiognathos, Scarus Valenciennes [A.] in Cuvier & Valenciennes 1840:272 [Histoire naturelle des poissons v. 14; ref. 4882] New Ireland Island, Bismarck Archipelago. Holotype (unique): MNHN 0000-0569. Type catalog: Bauchot & Guibé 1960:295-296 [ref. 20736] plus correction of counts. •Valid as Scarus prasiognathos Valenciennes 1840 -- (Randall & Bruce 1983:26 [ref. 5412], Kishimoto in Masuda et al. 1984:219 [ref. 6441], Allen & Swainston 1988:124 [ref. 25477], Randall et al. 1990:345 [ref. 15987], Senou & Morita 1993:6 [ref. 24328], Bellwood 1994:68 [ref. 19116], Randall 1995:296 [ref. 22896], Mohsin & Ambak 1996:494 [ref. 27969] as prasiognathus, Allen 1997:200 [ref. 23977] as prasiognathus, Myers 1999:211 [ref. 23965], Allen 2000:92 [ref. 37268], Parenti & Randall 2000:58 [ref. 24943], Bellwood in Randall & Lim 2000:630 [ref. 25122], Nakabo 2000:1025 [ref. 25182], Sadovy & Cornish 2000:222 [ref. 25480], Allen 2000:115 [ref. 25868], Bellwood 2001:3488 [ref. 26278], Hutchins 2001:40 [ref. 25847], Nakabo 2002:1025 [ref. 26193], Allen & Adrim 2003:52 [ref. 26830], Shibukawa et al. in Kimura & Matsuura 2003:164 [ref. 27510], Adrim et al. 2004:125 [ref. 27715], Liao et al. 2004:533 [ref. 28045], Randall 2005:452 [ref. 28239], Allen et al. 2006:1432 [ref. 29090], Satapoomin 2009:236 [ref. 30463], Motomura et al. 2010:178 [ref. 31256], Allen & Erdmann 2012:744 [ref. 31980], Fricke et al. 2019:245 [ref. 36673], Hoschke et al. 2019:159 [ref. 36626], Randall 2022:285 [ref. 39936]). Current status: Valid as Scarus prasiognathos Valenciennes 1840. Labridae. Distribution: Indo-West Pacific: Maldives east to Palau and New Ireland (Papua New Guinea), north to Ryukyu Islands (Japan), south to Rottnest Island (Western Australia). Habitat: marine.