xysturus, Ophichthys Jordan [D. S.] & Gilbert [C. H.] 1882:346 [Proceedings of the United States National Museum v. 4 (no. 237); ref. 2470] Mazatlán, Sinaloa, western Mexico. Syntypes: USNM 28142 (1, not found in 1980), 28247 (1), 29642 (1). Type catalog: Smith 1994:35 [ref. 21917]. •Synonym of Myrichthys tigrinus Girard 1859 -- (McCosker & Rosenblatt 1993:165 [ref. 21180]). •Valid as Myrichthys xysturus (Jordan & Gilbert 1882) -- (McCosker 1977:79 [ref. 6836], McCosker 1998:196 [ref. 23298], McCosker & Rosenblatt 2010:188 [ref. 30957], Grove et al. 2022:16 [ref. 41326], Page et al. 2023:54 [ref. 40505], Vela-Espinosa et al. 2023:6 [ref. 40981], Fricke et al. 2024:124 [ref. 41622]). Current status: Valid as Myrichthys xysturus (Jordan & Gilbert 1882). Ophichthidae: Ophichthinae. Distribution: Eastern Pacific: Pacific coast of central Baja California (Mexico) south to northern Peru, including Gulf of California (Mexico), Revillagigedo Islands (Mexico), Cocos Island (Costa Rica) and Galapagos Islands (Ecuador). IUCN (2023): Least Concern. Habitat: marine.