Třída: Actinopterygii - paprskoploutví
Řád: Cyprinodontiformes - halančíkovci
Čeleď: Poeciliidae - živorodkovití

Synonyma: Acanthophacelus bifurcus Eigenmann, 1909; Poecilia bifurca (Eigenmann, 1909).

Reference: Eigenmann, C. H. 1909. Reports on the expedition to British Guiana of the Indiana University and the Carnegie Museum, 1908. Report no. 1. Some new genera and species of fishes from British Guiana. Ann. Carnegie Mus. v. 6 (no. 1): 4-54.