retrospinis, Holocentrum Guichenot [A.] 1853:35, Pl. 1 (fig. 3) [Sagra, R. de la, Histoire physique, politique et naturelle de l'Ile de Cuba; ref. 18164] Cuba. Holotype (unique): MNHN A-2596. Type catalog: Bauchot 1970:18 [ref. 20740]. •Valid as Plectrypops retrospinis (Guichenot 1853) -- (Robins & Ray 1986:115 [ref. 23100], Cervigón 1991:251 [ref. 24472], Cervigón 1992:341 [ref. 23827], Kotlyar 1996:90 [ref. 23292], McEachran & Fechhelm 1998:1023 [ref. 23897], Kotlyar 1998:210 [ref. 24674], Smith-Vaniz et al. 1999:185 [ref. 25013], Collette et al. 2003:104 [ref. 26784], Greenfield 2003:1201 [ref. 27041], Menezes in Menezes et al. 2003:70 [ref. 27192], Smith et al. 2003:17 [ref. 27621], Nelson et al. 2004:110 [ref. 27807], Randall 2005:92 [ref. 28239], Page et al. 2013:112 [ref. 32708], Smith-Vaniz & Jelks 2014:34 [ref. 33341], Pinheiro et al. 2015:10 [ref. 34324], Robertson et al. 2020:156 [ref. 38098], Escobar-Sierra et al. 2021:74 [ref. 38844], Bennema & van Moorsel 2022:72 [ref. 39585], Carvalho-Filho 2023:98 [ref. 40480]). Current status: Valid as Plectrypops retrospinis (Guichenot 1853). Holocentridae: Myripristinae. Distribution: Western Atlantic: Bahamas and Florida (U.S.A.) south to São Paulo (Brazil), including Gulf of Mexico and Caribbean Sea. Habitat: marine.