| Green swordtail | |
|---|---|
 | |
| Wild type male of Xiphophorus hellerii | |
 | |
| Xiphophorus hellerii, captive-bred red variant, male (top) and female (below) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cyprinodontiformes |
| Family: | Poeciliidae |
| Genus: | Xiphophorus |
| Species: | X. hellerii |
| Binomial name | |
| Xiphophorus hellerii Heckel, 1848 | |
The green swordtail (Xiphophorus hellerii) is a species of freshwater fish. It is in Poeciliidae family of order Cyprinodontiformes. A live-bearing fish, it is closely related to the southern platyfish or 'platy' (X. maculatus) and can crossbreed with it. It is native to an area of North and Central America stretching from Veracruz, Mexico, to northwestern Honduras.
