erythrozonus, Hemigrammus Durbin [M. L.] 1909:56 [Annals of the Carnegie Museum v. 6 (no. 1); ref. 1166] Erukin, Guyana. Holotype: FMNH 53546 [ex CM 1448]. Paratypes: (32) BMNH 1911.10.31.386-387 (2); CAS 44383 [ex IU 11905] (5); FMNH 7344 (2), 53025 (5); CAS-SU 21949 [ex IU 11905] (2), 21950 [ex IU 11905] (2); MCZ [ex CM/IU] 29976 (2); USNM 66187 [ex CM] (2); ZMA 101032 (1). Type catalog: Henn 1928:65 [ref. 12305], Nijssen et al. 1982:18 [ref. 19236], Ibarra & Stewart 1987:44 [ref. 12367], Vari & Howe 1991:24 [ref. 19022]. •Valid as Hemigrammus erythrozonus Durbin 1909 -- (Taphorn 1992:218 [ref. 23654], Lima & Oyakawa in Reis et al. 2003:131 [ref. 27061], Mirande 2010:512 [ref. 31006], Mendonça & Wosiacki 2011:214 [ref. 31415], Carvalho et al. 2017:11 [ref. 35509], DoNascimiento et al. 2017:[8] [ref. 35679], Taphorn et al. 2022:15 [ref. 41297]). Current status: Valid as Hemigrammus erythrozonus Durbin 1909. Acestrorhamphidae: Pristellinae. Distribution: South America: Essequibo River (Guyana). Habitat: freshwater.