lucasanus, Julis Gill [T. N.] 1862:142 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 14 (nos 3-4); ref. 1662] Cape San Lucas, Baja California, Mexico. Syntypes: BMNH 1862.5.21.10 (1); MCZ 35989 [ex USNM] (2), 37271 [ex USNM 3676] (2); UMMZ [ex USNM] (not found in 1995); USNM 3676-3677 (?10, mixed), 4396 (now 3). •Valid as Thalassoma lucasanum (Gill 1862) -- (Bussing 1987:98 [ref. 21800], Randall 1995:670 [ref. 21650], Allen & Robertson 1994:206 [ref. 22193], Allen 1995:76 [ref. 21960], Gomon in Fischer et al. 1995:1223 [ref. 22830], De La Cruz Agüero et al. 1997:201 [ref. 24545], Grove & Lavenberg 1997:497 [ref. 24023], Parenti & Randall 2000:45 [ref. 24943], Thomson et al. 2000:182 [ref. 25640], Victor et al. 2001:282 [ref. 25613], Baldwin & McCosker 2001:92 [ref. 25779], Bernardi et al. 2004:371 [ref. 27454], Nelson et al. 2004:156 [ref. 27807], Love et al. 2005:137 [ref. 37547], McCosker & Rosenblatt 2010:193 [ref. 30957], Kuiter 2010:199 [ref. 35285], Page et al. 2013:161 [ref. 32708], Galván-Villa et al. 2016:148 [ref. 34871], Fourriére et al. 2016:448 [ref. 34668], Del Moral-Flores et al. 2016:610 [ref. 34923], González-Murcia et al. 2019:301 [ref. 36544], Love et al. 2021:178 [ref. 39279], Siccha-Ramirez et al. 2023:281 [ref. 40816], Vela-Espinosa et al. 2023:10 [ref. 40981]). Current status: Valid as Thalassoma lucasanum (Gill 1862). Labridae. Distribution: Eastern Pacific: Pacific coast of central Baja California (Mexico) south to northern Peru, including Gulf of California (Mexico) and Galapagos Islands (Ecuador). Habitat: marine.