guttatus, Nannorhamdia Pearson [N. E.] 1924:11, Pl. 2 (figs. 1-2) [Indiana University Studies v. 11 (no. 64); ref. 3396] Río Popoi, upper Río Beni, Bolivia. Holotype: CAS 63689 [ex IU 17268]. Paratypes: CAS 63690 [ex IU 17268] (1), UMMZ 66483 [ex IU 17268] (1). Type catalog: Ferraris 2007:185 [ref. 29155]. •Valid as Imparfinis guttatus (Pearson 1924) -- (Mees & Cala 1989:382 [ref. 14277], Burgess 1989:277 [ref. 12860], Bockmann & Guazzelli in Reis et al. 2003:414 [ref. 27061], Ferraris 2007:185 [ref. 29155], Ortega-Lara et al. 2011:778 [ref. 31716], Sarmiento et al. 2014:191 [ref. 35004], Meza-Vargas et al. 2021:24 [ref. 39298], Aguilera et al. 2022:[6] 1253 [ref. 40881], Cortés-Hernández et al. 2023:13 [ref. 40341], Koerber et al. 2023:3 [ref. 40368]). Current status: Valid as Imparfinis guttatus (Pearson 1924). Heptapteridae: Heptapterinae. Distribution: South America: Mamoré and Pilcomayo River basins (Argentina, Bolivia and Peru). Habitat: freshwater.