xanthurus, Pomacentrus Poey [F.] 1860:190 [Memorias sobre la historia natural de la Isla de Cuba v. 2; ref. 3499] Havana, Cuba. Syntypes and/or Poey specimens: MCZ 151392 [ex MCZ 14677a] (3). Type catalog: Howell Rivero 1938:207-208 [ref. 22926]. •Synonym of Pomacentrus leucostictus Müller & Troschel 1848 -- (Lloris & Rucabado 1990:849 [ref. 15959]). •Synonym of Stegastes variabilis (Castelnau 1855) -- (Allen 1991:254 [ref. 19344]). •Valid as Stegastes xanthurus (Poey 1860) -- (Smith-Vaniz & Jelks 2014:62 [ref. 33341], Robertson et al. 2016:147 [ref. 34961], Robertson et al. 2020:161 [ref. 38098], Parenti 2021:85 [ref. 38418], Escobar-Sierra et al. 2021:81 [ref. 38844], Page et al. 2023:161 [ref. 40505]). Current status: Valid as Stegastes xanthurus (Poey 1860). Pomacentridae: Microspathodontinae. Distribution: Western Atlantic: southern Florida (U.S.A.) south to northern South America, including Gulf of Mexico and Caribbean Sea. Habitat: marine.