Raycraft Ranch killifish
| Raycraft Ranch killifish | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | Cyprinodontiformes | 
| Family: | Goodeidae | 
| Genus: | Empetrichthys | 
| Species: | |
| Subspecies: | †E. l. concavus | 
| Trinomial name | |
| †Empetrichthys latos concavus R. R. Miller, 1948 | |
The Raycraft Ranch killifish or Raycraft poolfish (Empetrichthys latos concavus), a subspecies of the killifish Empetrichthys latos, was first described in 1948. This subspecies was restricted to a single spring on the Raycraft Ranch in the Pahrump Valley of Nye County, Nevada. It became extinct, most likely late in the 1950s, as a result of groundwater extraction and the filling in of the spring, along with competition from introduced carp species.