Třída: Actinopterygii - paprskoploutví
Řád: Characiformes - trnobřiší
Čeleď: Acestrorhynchidae - jehlozubkovití

Reference: Eigenmann, C. H. 1912. The freshwater fishes of British Guiana, including a study of the ecological grouping of species, and the relation of the fauna of the plateau to that of the lowlands. Mem. Carnegie Mus. v. 5 (no. 1): i-xxii + 1-578, Pls. 1-103.