mazatlana, Solea Steindachner [F.] 1869:149 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Classe v. 6 (no. 19) (for 15 July 1869); ref. 20467] Mazatlán, Sinaloa, western Mexico. Syntypes: (several) NMW 8049-51 (3), 8085-86 (2). Species later illustrated and described in more detail in Steindachner 1870:312 [p. 23 of separate], Pl. 5, [ref. 4217]. •Valid as Achirus mazatlanus (Steindachner 1869) -- (Hiyama in Kumada 1937:61 [ref. 39147], Villa 1982:238 [ref. 36708], Lea et al. 1989:240 [ref. 21534], Allen & Robertson 1994:292 [ref. 22193], Bussing & López S. 1994:154 [ref. 23101], Krupp in Fischer et al. 1995:848 [ref. 22829], De La Cruz Agüero et al. 1997:49 [ref. 24545], Evseenko 1998:60 [ref. 23643], Chirichigno F. & Vélez D. 1998:212 [ref. 24555], Castro-Aguirre et al. 1999:494 [ref. 24550], Nelson et al. 2004:182 [ref. 27807], Love et al. 2005:177 [ref. 37547], Miller 2006:402 [ref. 28615], Angulo et al. 2013:1010 [ref. 33194], McMahan et al. 2013:454 [ref. 32422], Page et al. 2013:188 [ref. 32708], Barriga Salazar 2014:119 [ref. 35745], Jiménez-Prado et al. 2015:391 [ref. 34894], Romero-Berny et al. 2018:93 [ref. 35859], González-Murcia et al. 2019:299 [ref. 36544], Love et al. 2021:221 [ref. 39279], Angulo et al. 2023:43 [ref. 40676], Barrientos et al. 2023:273 [ref. 41235], Page et al. 2023:134 [ref. 40505], Siccha-Ramirez et al. 2023:247 [ref. 40816], Valenzuela et al. 2023:95 [ref. 40815]). Current status: Valid as Achirus mazatlanus (Steindachner 1869). Achiridae. Distribution: Eastern Pacific: Pacific coast of northern Baja California (Mexico) south to Peru, including Gulf of California (Mexico). Habitat: freshwater, brackish, marine.