falcatus, Salmo Bloch [M. E.] 1794:120, Pl. 385 [Naturgeschichte der ausländischen Fische v. 8; ref. 463] Suriname. Syntypes: ZMB 3613 (2). Type catalog: Paepke 1999:62 [ref. 24282]. On p. 97 of Bloch's Ichthyologie, v. 11 [ref. 21381]. •Synonym of Acestrorhynchus pantaneiro Menezes 1990 -- (Casciotta et al. 2003:118 [ref. 28130]). •Valid as Acestrorhynchus falcatus (Bloch 1794) -- (Menezes & Géry 1983:590 [ref. 8307], Ortega & Vari 1986:7 [ref. 9708], Géry et al. 1991:42 [ref. 21021], Planquette et al. 1996:222 [ref. 22818], Lasso et al. 2001:95 [ref. 25928], Menezes in Reis et al. 2003:231 [ref. 27061], López-Fernández & Winemiller 2003:199 [ref. 27386], Toledo-Piza 2007:754 [ref. 29426], Barriga Salazar 2014:109 [ref. 35745], Sarmiento et al. 2014:183 [ref. 35004], Ramos et al. 2014:4 [ref. 35321], Melo et al. 2016:133 [ref. 34701], DoNascimiento et al. 2017:45 [ref. 35633], Silva et al. 2020:4 [ref. 37809], Meza-Vargas et al. 2021:15 [ref. 39298], Borstein et al. 2022:16 [ref. 39507], Koerber et al. 2022:29 [ref. 39235], Vieira et al. 2023:17 [ref. 40759]). Current status: Valid as Acestrorhynchus falcatus (Bloch 1794). Acestrorhynchidae: Acestrorhynchinae. Distribution: South America: Brazil, Ecuador, Colombia, Bolivia, French Guiana, Guyana, Peru, Suriname and Venezuela. Habitat: freshwater.