rosenbergii, Oreogobius Boulenger [G. A.] 1899:126 [Annals and Magazine of Natural History (Series 7) v. 4 (no. 20) (art. 12); ref. 552] Paramba, northwestern Ecuador, elevation 3500 feet. Syntypes: BMNH 1899.6.29.26-27 (2). •Valid as Sicydium rosenbergii (Boulenger 1899) -- (Kullander in Reis et al. 2003:663 [ref. 27061], Van Tassell 2011:145 [ref. 31732], Barriga Salazar 2014:119 [ref. 35745] as rosenbergi, Jiménez-Prado et al. 2015:368 [ref. 34894], Aguirre et al. 2017:5 [ref. 36716], Parenti 2021:416 [ref. 38603]). Current status: Valid as Sicydium rosenbergii (Boulenger 1899). Oxudercidae: Sicydiinae. Distribution: Eastern Pacific: Ecuador. Habitat: freshwater, brackish.