guaporensis, Microschemobrycon Eigenmann [C. H.] 1915:56, Pl. 8 (fig. 2) [Memoirs of the Carnegie Museum v. 7 (no. 1); ref. 1231] Rio Guaporé at Maciél, Amazon system, Brazil. Holotype (unique): FMNH 57926 [ex CM 6910a]. Type catalog: Henn 1928:59 [ref. 12305], Ibarra & Stewart 1987:57 [ref. 12367]. •Valid as Microschemobrycon guaporensis Eigenmann 1915 -- (Malabarba in Reis et al. 2003:145 [ref. 27061], Sarmiento et al. 2014:185 [ref. 35004], Ohara et al. 2019:334 [ref. 36615], Marinho 2024:219 [ref. 40817]). Current status: Valid as Microschemobrycon guaporensis Eigenmann 1915. Characidae: Characinae. Distribution: South America: Guaporé River drainage, Madeira River basin, Brazil and Bolivia. Habitat: freshwater.