Fluviphylax is a genus of tiny poeciliids native to the Amazon Basin, Orinoco Basin, and Oyapock Basin in South America.
| Fluviphylax | |
|---|---|
 | |
| Fluviphylax sp. | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cyprinodontiformes |
| Family: | Poeciliidae |
| Tribe: | Fluviphylacini Roberts, 1970[1] |
| Genus: | Fluviphylax Whitley, 1965 |
| Type species | |
| Potamophylax pygmaeus Myers & Carvalho, 1955[1] | |
Species
Five recognized species are placed in this genus:[2]
- Fluviphylax obscurus W. J. E. M. Costa, 1996
- Fluviphylax palikur W. J. E. M. Costa & Le Bail, 1999
- Fluviphylax pygmaeus (G. S. Myers & J. de P. Carvalho, 1955)
- Fluviphylax simplex W. J. E. M. Costa, 1996
- Fluviphylax zonatus W. J. E. M. Costa, 1996