nigricans, Entomacrodus Gill [T. N.] 1859:168 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 11; ref. 1755] Near Bridgetown, Barbados, West Indies. Holotype (unique): USNM 34625. Type catalog: Springer et al. 1991:16 [ref. 18888]. •Valid as Entomacrodus nigricans Gill 1859 -- (Springer 1967:126 [ref. 18947], Springer 1972:12 [ref. 7647], Greenfield & Johnson 1981:67 [ref. 5580], Robins & Ray 1986:228 [ref. 23100], Cervigón 1994:119 [ref. 24488], Aguilera 1998:52 [ref. 24221], Smith-Vaniz et al. 1999:308 [ref. 25013], Springer & Fricke 2000:388 [ref. 24575], Schmitter-Soto et al. 2000:166 [ref. 27754], Collette et al. 2003:121 [ref. 26784], Williams 2003:1772 [ref. 27109], Smith et al. 2003:56 [ref. 27621], Nelson et al. 2004:166 [ref. 27807], McEachran & Fechhelm 2005:629 [ref. 28815], Rangel & Mendes 2009:59 [ref. 30055] with Brazilian records probably misidentifications, Patzner et al. 2009:454 [ref. 30396], Williams & Bogorodsky 2010:67 [ref. 30822], Page et al. 2013:168 [ref. 32708], Smith-Vaniz & Jelks 2014:72 [ref. 33341], Robertson et al. 2016:147 [ref. 34961], Robertson et al. 2020:151 [ref. 38098], Escobar-Sierra et al. 2021:77 [ref. 38844], Page et al. 2023:158 [ref. 40505]). Current status: Valid as Entomacrodus nigricans Gill 1859. Blenniidae: Salariinae. Distribution: Western Atlantic. Habitat: marine.