| Family: |
Cyprinodontidae (Pupfishes), subfamily: Cyprinodontinae |
| Max. size: |
3.4 cm TL (male/unsexed) |
| Environment: |
benthopelagic; freshwater, non-migratory |
| Distribution: |
North America: restricted to Devils Hole, Ash Meadows in Nye County, Nevada, USA. |
| Diagnosis: |
|
| Biology: |
Occurs in deep limestone pools. The entire population feeds and breeds in an area 20 meters square, a limestone ledge along one side of Devils Hole. Not a seasonal killifish. Is very difficult to maintain in aquarium. |
| IUCN Red List Status: |
Critically Endangered (CR); Date assessed: 27 August 2014 (B1ab(v)+2ab(v); C2a(ii)) Ref. (130435)
|
| Threat to humans: |
harmless |
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