Species that contain: Gobionellus and microdon [ 2 ] records

microdon, Gobius Gilbert [C. H.] 1892:554 [Proceedings of the United States National Museum v. 14 (no. 880); ref. 1626] San Juan lagoon, immediately north of Río Ahomè [= Río Fuerte], Pacific coast of Mexico. Lectotype: USNM 46535. Paralectotypes: USNM 48256 (1). Lectotype selected by Pezold 2004:290 [ref. 27686]. •Valid as Gobionellus microdon (Gilbert 1892) -- (Allen & Robertson 1994:264 [ref. 22193], Hoese in Fischer et al. 1995:1134 [ref. 22829], De La Cruz Agüero et al. 1997:170 [ref. 24545], Castro-Aguirre et al. 1999:446 [ref. 24550], Pezold 2004:289 [ref. 27686], Nelson et al. 2004:171 [ref. 27807], Miller 2006:398 [ref. 28615], Van Tassell 2011:144 [ref. 31732], Angulo et al. 2013:1009 [ref. 33194], McMahan et al. 2013:453 [ref. 32422], Page et al. 2013:177 [ref. 32708], Barriga Salazar 2014:119 [ref. 35745], Jiménez-Prado et al. 2015:365 [ref. 34894], Romero-Berny et al. 2018:92 [ref. 35859], González-Murcia et al. 2019:293 [ref. 36544], Love et al. 2021:205 [ref. 39279], Angulo et al. 2023:37 [ref. 40676], Page et al. 2023:122 [ref. 40505]). Current status: Valid as Gobionellus microdon (Gilbert 1892). Oxudercidae: Gobionellinae. Distribution: Eastern Pacific: Gulf of California (Mexico) south to Ecuador. Habitat: brackish, marine.

mystax, Gobionellus Ginsburg [I.] 1953:23 [Journal of the Washington Academy of Sciences v. 43 (no. 1); ref. 1806] Laguna de Mexcalititan, Territory of Tepic (now the state of Nayarit), Mexico. Holotype: USNM 130859. Paratypes: USNM 123235 (1). •Valid as Gobionellus mystax Ginsburg 1953 -- (Castro-Aguirre et al. 1999:446 [ref. 24550]). •Synonym of Gobionellus microdon (Gilbert 1892) -- (Pezold 2004:290 [ref. 27686]). Current status: Synonym of Gobionellus microdon (Gilbert 1892). Oxudercidae: Gobionellinae. Habitat: freshwater, brackish, marine.