Cnesterodontini is a tribe of fishes which are within the subfamily Poeciliinae of the family Poeciliidae.[1] This tribe is distinguished from other tribes in the Poeciliinae by the males having five rays in the pelvic fin, there is a pedicle at the base of the third ray which joins it to the fourth ray, another pedicle at the third rays tip and a membrane there too.[2]
The following genera are included within the tribe:[1]
Other workers include only Cnestrodon, Phallotorynus and Phalloceros while putting Tomerues in its own tribe, the Tomeurini, and Phalloptychus into a new tribe called Girardinini along with the genera Girardinus, Phallichthys, Xenophallus and Poeciliopsis.[2]