nigricinctus, Labrisomus Howell Rivero [L.] 1936:68 [Proceedings of the Boston Society of Natural History v. 41 (no. 4); ref. 12257] Coast of Havana, Cuba. Holotype (unique): MCZ 34150. •Valid as Labrisomus nigricinctus Howell Rivero 1936 -- (Greenfield & Johnson 1981:23 [ref. 5580], Robins & Ray 1986:227 [ref. 23100], Cervigón 1994:75 [ref. 24488], Schmitter-Soto et al. 2000:165 [ref. 27754], Sazima et al. 2002:131 [ref. 26189], Williams 2003:1759 [ref. 27109], Smith et al. 2003:49 [ref. 27621], Nelson et al. 2004:163 [ref. 27807], McEachran & Fechhelm 2005:596 [ref. 28815], Patzner et al. 2009:462 [ref. 30396], Page et al. 2013:169 [ref. 32708], Smith-Vaniz & Jelks 2014:67 [ref. 33341]). •Valid as Brockius nigricinctus (Howell Rivero 1936) -- (Lin & Hastings 2013:12 [ref. 33286], Robertson et al. 2020:157 [ref. 38098]). Current status: Valid as Brockius nigricinctus (Howell Rivero 1936). Labrisomidae. Distribution: Western Atlantic. Habitat: marine.