melasma, Decodon Gomon [M. F.] 1974:207, Fig. 1 [Proceedings of the Biological Society of Washington v. 87 (no. 19); ref. 7103] 3 miles off Buena Vista, Gulf of California, Mexico, depth 55 fathoms. Holotype: USNM 210859. Paratypes: CAS 28809 (4); LACM 33722-1 (4); SIO 65-305 (50); USNM 210860 (4); plus non-type material. •Valid as Decodon melasma Gomon 1974 -- (Bussing 1987:95 [ref. 21800], Allen & Robertson 1994:198 [ref. 22193], Bussing & López S. 1994:116 [ref. 23101], Gomon in Fischer et al. 1995:1207 [ref. 22830], Gomon 1997:819 [ref. 23083], De La Cruz Agüero et al. 1997:197 [ref. 24545], Chirichigno F. & Vélez D. 1998:330 [ref. 24555], Parenti & Randall 2000:17 [ref. 24943], Lea & Rosenblatt 2000:125 [ref. 25206], Thomson et al. 2000:172 [ref. 25640], Allen & Groce 2001:131 [ref. 25750], Baldwin & McCosker 2001:91 [ref. 25779], Nelson et al. 2004:155 [ref. 27807], Love et al. 2005:135 [ref. 37547], McCosker & Rosenblatt 2010:193 [ref. 30957], Kuiter 2010:49 [ref. 35285], Page et al. 2013:159 [ref. 32708], Robertson et al. 2017:91 [ref. 35676], Sánchez-Jiménez et al. 2018:S8 [ref. 36248], Love et al. 2021:176 [ref. 39279], Grove et al. 2022:21 [ref. 41326], Page et al. 2023:173 [ref. 40505], Siccha-Ramirez et al. 2023:278 [ref. 40816]). Current status: Valid as Decodon melasma Gomon 1974. Labridae. Distribution: Eastern Pacific: southern California (U.S.A.) south to northern Peru, including Gulf of California (Mexico), Cocos Island (Costa Rica) and Galapagos Islands (Ecuador). Habitat: marine.