browni, Moenkhausia Eigenmann [C. H.] 1909:13 [Annals of the Carnegie Museum v. 6 (no. 1); ref. 1222] Atuataima Falls, Potaro River, Guyana. Holotype: FMNH 52732 [ex CM]. Paratypes: (119, CM and IU) BMNH 1911.10.31.239-140 (2)/.241-242 (2)/.243 (1); CAS 61560 [ex IU 11712] (5), 61629 [ex IU 11713] (3), 61792 [ex IU 11714] (10), 62040 [ex IU 11715] (1); FMNH 7488-90 (2, 1, 2), 52677-81 (3, 10, 1, 2, 1), 52684 (1), 53517 (5), 69585 (6), 71293 (18), 52733 (1); MCZ 30012 (2), 30014 (1); NMW 56188-89 (1, 1); CAS-SU 21830 (1), 21924-25 (2, 2); USNM 66238 (2); ZMA 110639 (1), 110649 (1). Type catalog: Henn 1928:66 [ref. 12305] as CM 1004, Böhlke 1953:25 [ref. 12291], Nijssen et al. 1982:22 [ref. 19236], Ibarra & Stewart 1987:57 [ref. 12367], Vari & Howe 1991:30 [ref. 19022]. •Valid as Moenkhausia browni Eigenmann 1909 -- (Benine 2002:293 [ref. 26541], Benine in Reis et al. 2003:146 [ref. 27061], Géry & Zarske 2004:43 [ref. 28287], DoNascimiento et al. 2017:51 [ref. 35633], see DoNascimiento et al. 2017:[9] [ref. 35679], Taphorn et al. 2022:17 [ref. 41297], Marinho & Benine 2024:224 [ref. 40817]). Current status: Valid as Moenkhausia browni Eigenmann 1909. Acestrorhamphidae: Stichonodontinae. Distribution: South America: Potaro River drainage (Guyana) endemic. Habitat: freshwater.