notomelas, Cheirodon Eigenmann [C. H.] 1915:74, Fig. 26; Pl. 12 (fig. 2) [Memoirs of the Carnegie Museum v. 7 (no. 1); ref. 1231] Lake 4 miles from Miguel Calmone [Avanhandava], Rio Tietê basin, Brazil. Holotype: FMNH 57829 [ex CM 6812]. Paratypes: (19) CAS 59781 [ex IU 14095] (3), CAS-SU 17519 [ex FMNH 57830, ex CM 6813] (1), FMNH 57830 (10, now 9). Type catalog: Henn 1928:58 [ref. 12305], Böhlke 1953:23 [ref. 12291], Ibarra & Stewart 1987:23 [ref. 12367]. •Valid as Odontostilbe notomelas (Eigenmann 1915) -- (Casciotta et al. 1992:8 [ref. 21059], Gómez & Chebez 1996:51 [ref. 23791]). •Valid as Cheirodon notomelas (Eigenmann 1915) -- (Jerep & Malabarba 2014:307 [ref. 33376], Malabarba & Jerep 2014:58 [ref. 33440]). •Valid as Serrapinnus notomelas (Eigenmann 1915) -- (Malabarba 1998:215 [ref. 23844], Malabarba in Reis et al. 2003:219 [ref. 27061], López et al. 2003:31 [ref. 27366], Menni 2004:78 [ref. 28131], Mirande & Koerber 2015:19 [ref. 35117], Koerber et al. 2017:31 [ref. 35267], Azevedo-Santos et al. 2020:5 [ref. 39606], Reis et al. 2020:458 [ref. 38364], Brandão et al. 2023:109 [ref. 40464], Jerep et al. 2024:276 [ref. 40817]). Current status: Valid as Serrapinnus notomelas (Eigenmann 1915). Characidae: Cheirodontinae. Distribution: South America: upper Paraná River basin (Argentina, Brazil and Paraguay). Habitat: freshwater.