underwoodi, Rhamdia Regan [C. T.] 1907:135, Pl. 23 (fig. 4) [Biologia Centrali-Americana Part 215; ref. 3629] Juan Viñas, Costa Rica. Lectotype: BMNH 1907.6.28.33 (84.5 mm SL, largest of four). Paralectotypes: BMNH 1907.6.28.34-36 (3). Type catalog: Ferraris 2007:198 [ref. 29155]. Lectotype selected by Silfvergrip 1996:130 [ref. 22347]. •Valid as Rhamdia underwoodi Regan 1907 -- (Burgess 1989:279 [ref. 12860]). •Synonym of Rhamdia rogersi (Regan 1907) -- (Bussing 1998:154 [ref. 24179]). •Synonym of Rhamdia laticauda (Kner 1858) -- (Silfvergrip 1996:86 [ref. 22347], Bockmann & Guazzelli in Reis et al. 2003:423 [ref. 27061], Ferraris 2007:198 [ref. 29155]). Current status: Synonym of Rhamdia laticauda (Kner 1858). Heptapteridae: Rhamdiinae. Habitat: freshwater.