Raycraft Ranch killifish

Raycraft Ranch killifish

Presumed Extinct  (NatureServe)
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

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.