atricaudus, Apogon Jordan [D. S.] & McGregor [E. A.] in Jordan & Evermann 1898:2853 [Bulletin of the United States National Museum No. 47; ref. 2445] Benedicto Island, Socorro Island and Clarian Island, western coast of Mexico. Syntypes: BMNH 1898.10.29.22-25 (4), NMW 34670-74 (5), CAS-SU 5708 (12), USNM 48527 (4). Type catalog: Böhlke 1953:71 [ref. 12291]. Appeared first as above although unintended, with citation to [as yet unpublished] Jordan and McGregor 1898 [published 1899]; Jordan & McGregor 1899:277 [ref. 2488]. •Valid as Apogon atricaudus Jordan & McGregor 1898 -- (Eschmeyer & Herald 1983:202 [ref. 9277], Allen & Robertson 1994:122 [ref. 22193], Allen & Robertson 1997:825 [ref. 41086], De La Cruz Agüero et al. 1997:54 [ref. 24545], Thomson et al. 2000:112 [ref. 25640], Fraser & Randall 2002:26 [ref. 25969], Nelson et al. 2004:138 [ref. 27807], Love et al. 2005:114 [ref. 37547], Béarez & Séret 2009:147 [ref. 36646], Page et al. 2013:142 [ref. 32708], Mabuchi et al. 2014:197 [ref. 33426], Del Moral-Flores et al. 2016:609 [ref. 34923], Fourriére et al. 2016:445 [ref. 34668], Fourrière et al. 2016:Suppl. p. 9 [ref. 42488], Kells et al. 2016:228 [ref. 35888], Piñeros et al. 2018:234 [ref. 36377], Kuiter & Kozawa 2019:28 [ref. 36965], Love et al. 2021:151 [ref. 39279], Lea et al. 2022:107 [ref. 39165], Page et al. 2023:125 [ref. 40505], Vela-Espinosa et al. 2023:7 [ref. 40981], Fricke et al. 2024:297 [ref. 41622]). Current status: Valid as Apogon atricaudus Jordan & McGregor 1898. Apogonidae: Apogoninae. Distribution: Eastern Pacific: Channel Islands (California, U.S.A.) south to Pacific coast of Baja California Sur (Mexico), including southern Gulf of California (Mexico), Guadalupe Island (Mexico), Revillagigedo Islands (Mexico), Clipperton Island (France) and Cocos Island (Costa Rica). IUCN (2010): Least Concern. Habitat: marine.