casiquiare, Microschemobrycon Böhlke [J. E.] 1953:843, Pl. 20 (fig. 1) [Annals and Magazine of Natural History (Series 12) v. 6 (no. 71) (art. 85); ref. 12366] São Gabriel Rapids, at São Gabriel village, Rio Negro, Brazil, 0°08'03"S, 67°03'28"W. Holotype: CAS-SU 17497. Paratypes: ANSP 131517-18 (2, c&s), 131520 (1, skeleton); CAS 20689-90 (10, 5); CAS-SU 17498-512 (8, 3, 11, 2, 1, 1, 11, 2, 1, 8, 4, 6, 1, 27, 2), Type catalog: Böhlke 1984:44 [ref. 13621]. •Valid as Microschemobrycon casiquiare Böhlke 1953 -- (Taphorn 1992:263 [ref. 23654], Malabarba in Reis et al. 2003:145 [ref. 27061], Mirande 2010:529 [ref. 31006], DoNascimiento et al. 2017:53 [ref. 35633], Urbano-Bonilla et al. 2018:86 [ref. 35773], Ohara et al. 2019:333 [ref. 36615], Taphorn et al. 2022:17 [ref. 41297], Marinho 2024:219 [ref. 40817]). Current status: Valid as Microschemobrycon casiquiare Böhlke 1953. Characidae: Characinae. Distribution: South America: Amazon and Orinoco river basins (Brazil, Colombia, Guyana and Venezuela). Habitat: freshwater.