spinosus, Tyttobrycon Géry [J.] 1973:121, Figs. 23-26 [Studies on the Neotropical Fauna v. 8; ref. 1596] Brook between upper Río Chaparé and Río Chimoré, tributary of Río Mamoré, east of Todos Santos, central Bolivia. Holotype: ZFMK 3000. Paratypes: (2) Géry coll. 699 (1), ZFMK 1420 (1). Type catalog: Herder et al. 2010:118 [ref. 31087]. •Valid as Tyttobrycon spinosus Géry 1973 -- (Malabarba in Reis et al. 2003:159 [ref. 27061], Marinho et al. 2013:739 [ref. 33025], Sarmiento et al. 2014:185 [ref. 35004], Abrahão et al. 2019:18 [ref. 37182], Marinho 2024:284 [ref. 40817]). Current status: Valid as Tyttobrycon spinosus Géry 1973. Acestrorhamphidae: Tyttobryconinae. Distribution: South America: Mamoré River basin, Bolivia. Habitat: freshwater.