gemma, Hypoplectrus Goode [G. B.] & Bean [T. H.] 1882:428 [Proceedings of the United States National Museum v. 5 (no. 297); ref. 1840] Garden Key, Dry Tortugas, Florida, U.S.A. Holotype (unique): USNM 3422. •See Aguilar-Perera & González-Salas 2010:377 [ref. 30878]. •Valid as Hypoplectrus gemma Goode & Bean 1882 -- (Cervigón 1992:435 [ref. 23827], Domeier 1994:104 [ref. 21359], Musick et al. 2000:16 [ref. 24959], Claro et al. 2000:22 [ref. 26458], Schmitter-Soto et al. 2000:157 [ref. 27754], Heemstra et al. 2003:1365 [ref. 27060], Nelson et al. 2004:128 [ref. 27807], McEachran & Fechhelm 2005:158 [ref. 28815], Aguilar-Perera & Tuz-Sulub 2010:143 [ref. 31684], Lobel 2011:11 [ref. 31606], Del Moral-Flores et al. 2012:4 [ref. 31860], Tavera & Acero P. 2013:33 [ref. 32434], Page et al. 2013:132 [ref. 32708], Robertson et al. 2016:144 [ref. 34961], Parenti & Randall 2020:117 [ref. 37354], Puebla et al. 2022:111 [ref. 39011], Page et al. 2023:194 [ref. 40505]). Current status: Valid as Hypoplectrus gemma Goode & Bean 1882. Serranidae. Distribution: Western Atlantic: Florida (U.S.A.) and Bahamas, including Gulf of Mexico (U.S.A., Mexico). Habitat: marine.