ionthas, Isesthes Jordan [D. S.] & Gilbert [C. H.] 1882:299 [Proceedings of the United States National Museum v. 5 (no. 282); ref. 2472] Pensacola, Florida, U.S.A. Lectotype: USNM 30856. Paralectotypes: USNM 307711 [ex 30856] (1), 103377 (1), plus 1 not found. Type catalog: Springer et al. 1991:11 [ref. 18888]. •Valid as Hypsoblennius ionthas (Jordan & Gilbert 1882) -- (Robins & Ray 1986:232 [ref. 23100], Boschung 1992:160 [ref. 23239], Bath 1996:90 [ref. 22687], Castro-Aguirre et al. 1999:407 [ref. 24550], Schwartz 2000:16 [ref. 24409], Bath 2000:176 [ref. 25102], Williams 2003:1772 [ref. 27109], Nelson et al. 2004:167 [ref. 27807], McEachran & Fechhelm 2005:635 [ref. 28815], Patzner et al. 2009:455 [ref. 30396], Page et al. 2013:168 [ref. 32708], Page et al. 2023:158 [ref. 40505]). Current status: Valid as Hypsoblennius ionthas (Jordan & Gilbert 1882). Blenniidae: Salariinae. Distribution: Western Atlantic. Habitat: marine.