| Cyprinodon arcuatus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cyprinodontiformes |
| Family: | Cyprinodontidae |
| Genus: | Cyprinodon |
| Species: | †C. arcuatus |
| Binomial name | |
| †Cyprinodon arcuatus Wendell L. Minckley & R. R. Miller, 2002 | |
Cyprinodon arcuatus (Santa Cruz pupfish) is a species of fish in the family Cyprinodontidae. It was endemic to the Santa Cruz River in Arizona. It has been declared extinct as of 2011.
Description
The Santa Cruz pupfish exhibited sexual dimorphism in size, with males averaging 37mm (1.46in) in length and females averaging 32mm (1.26in) in length.[2] Coloration in breeding males was dark green to black with alternating stripes of light and dark. Female and non-breeding males were reported to have clear fins except for a black dorsal fin. C. arcuatus is differentiated from other Cyprinodon species by a highly convex dorsal body and concave post-dorsal body, as well a lack of orange or yellow in breeding males' fins.
References
- ↑ NatureServe (2013). "Cyprinodon arcuatus". IUCN Red List of Threatened Species. 2013: e.T202375A15362268. doi:10.2305/IUCN.UK.2013-1.RLTS.T202375A15362268.en. Retrieved 20 November 2021.
- ↑ W. L. Minckley; Robert Rush Miller; Steven Mark Norris (August 2002). "Three New Pupfish Species, Cyprinodon (Teleostei, Cyprinodontidae), from Chihuahua, México, and Arizona, USA". Copeia. 2002 (3): 687–705. doi:10.1643/0045-8511(2002)002[0687:TNPSCT]2.0.CO;2. S2CID 86231603.
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