laterale, Characidium Eigenmann [C. H.] 1909:36 [Annals of the Carnegie Museum v. 6 (no. 1); ref. 1222] Amatuk, Guyana. Holotype: FMNH 72627 [ex CM 1141]. Paratypes: (3, IU) BMNH 1911.10.31.161 (1), CAS 27763 [ex IU 11673] (now 1, orig. 3). Type catalog: Henn 1928:55 [ref. 12305], Ibarra & Stewart 1987:22 [ref. 12367]. Not the same as Characidium laterale (Boulenger 1895). •Valid as Ammocryptocharax lateralis (Eigenmann 1909) -- (Buckup 1993:108 [ref. 20831], Buckup 1993:328 [ref. 26741], Géry & Zarske 2002:35 [ref. 26555], Buckup in Reis et al. 2003:88 [ref. 27061]). Current status: Valid as Ammocryptocharax lateralis (Eigenmann 1909). Crenuchidae: Characidiinae. Distribution: Potaro and Mazaruni River basins, Guyana. Habitat: freshwater.