scutum, Solea Günther [A.] 1862:474 [Catalogue of the fishes in the British Museum v. 4; ref. 1969] Pacific coast of Central America. Syntypes: (orig. 5, "?f" not a type) BMNH 1848.3.18.185-187 (3) Gulf of Fonseca, 1860.6.16.22 (1) Panama. •Valid as Achirus scutum (Günther 1862) -- (Hiyama in Kumada 1937:61 [ref. 39147], Allen & Robertson 1994:293 [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], Chirichigno F. & Vélez D. 1998:212 [ref. 24555], Castro-Aguirre et al. 1999:495 [ref. 24550], Nelson et al. 2004:182 [ref. 27807], Love et al. 2005:177 [ref. 37547], Ramos et al. 2009:61 [ref. 30194], McMahan et al. 2013:454 [ref. 32422], 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], Valenzuela et al. 2023:95 [ref. 40815], Siccha-Ramirez et al. 2023:248 [ref. 40816]). Current status: Valid as Achirus scutum (Günther 1862). Achiridae. Distribution: Eastern Pacific: southern tip of Baja California Sur (Mexico) south to Peru, including Gulf of California (Mexico). Habitat: brackish, marine.