perugiae, Odontesthes Evermann [B. W.] & Kendall [W. C.] 1906:94, Fig. 3 [Proceedings of the United States National Museum v. 31 (no. 1482); ref. 1282] Probably from freshwater streams flowing south from the Sierras in the Province of Buenos Aires, Argentina. Holotype (unique): USNM 55572. •Valid as Odontesthes perugiae Evermann & Kendall 1906 -- (Dyer 1998:535 [ref. 23858], Gállego et al. 1998:105 [ref. 25010], Sverlij et al. 1998:74 [ref. 27632], Dyer & Gosztonyi 1999:215 [ref. 24265], Dyer 2000:108 [ref. 26677], Bemvenuti 2002:276 [ref. 26202] as aff. perugiae, Malabarba & Dyer 2002:269 [ref. 26538], Dyer in Reis et al. 2003:522 [ref. 27061], López et al. 2003:68 [ref. 27366], Menezes et al. in Menezes et al. 2003:66 [ref. 27192], Menni 2004:85 [ref. 28131], Litz & Koerber 2014:29 [ref. 33622], Mirande & Koerber 2015:50 [ref. 35117], Bertaco et al. 2016:423 [ref. 34561], Nión et al. 2016:41 [ref. 35565], Wingert et al. 2017:503 [ref. 35244], Carvalho-Filho 2023:95 [ref. 40480], Loureiro et al. 2023:164 [ref. 40506]). Current status: Valid as Odontesthes perugiae Evermann & Kendall 1906. Atherinopsidae: Atherinopsinae. Distribution: South America: Lower La Plata river basin (Argentina, Brazil and Uruguay). Habitat: freshwater.