rectifraenum, Pomacentrus Gill [T. N.] 1862:148 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 14 (nos 3-4); ref. 1662] Cape San Lucas, Baja California, Mexico. Syntypes: (6) BMNH 1866.5.21.15 [ex USNM] (1), USNM 3670 (4). •Valid as Pomacentrus rectifraenum Gill 1862 -- (Pequeño 1989:63 [ref. 14125]). •Valid as Stegastes rectifraenum (Gill 1862) -- (Allen & Woods 1980:190 [ref. 6919], Allen 1991:254 [ref. 19344], Allen & Robertson 1994:192 [ref. 22193], Schneider & Krupp in Fischer et al. 1995:1404 [ref. 22830], Chirichigno F. & Vélez D. 1998:298 [ref. 24555], Thomson et al. 2000:156 [ref. 25640], Nelson et al. 2004:155 [ref. 27807], Love et al. 2005:135 [ref. 37547], Page et al. 2013:159 [ref. 32708], Barriga Salazar 2014:119 [ref. 35745], Del Moral-Flores et al. 2016:610 [ref. 34923], Fourriére et al. 2016:448 [ref. 34668], Galván-Villa et al. 2016:148 [ref. 34871], Love et al. 2021:175 [ref. 39279], Parenti 2021:84 [ref. 38418], Page et al. 2023:161 [ref. 40505]). Current status: Valid as Stegastes rectifraenum (Gill 1862). Pomacentridae: Microspathodontinae. Distribution: Eastern Pacific: Pacific coast of northern Baja California (Mexico) south to Peru, including Gulf of California (Mexico) and Revillagigedo Islands (Mexico). Habitat: marine.