nycteris, Pachynathus Jordan [D. S.] & Evermann [B. W.] 1903:199 [Bulletin of the U. S. Fish Commission v. 22 (1902); ref. 2450] Honolulu, Oahu Island, Hawaiian Islands. Holotype (unique): USNM 50821. •Synonym of Melichthys vidua (Richardson 1845) -- (Randall & Klausewitz 1973:62 [ref. 7581], Randall 2005:623 [ref. 28239], Mundy 2005:524 [ref. 28379], Randall 2007:471 [ref. 30952], Parenti 2021:655 [ref. 38921]). Current status: Synonym of Melichthys vidua (Richardson 1845). Balistidae. Habitat: marine.