Cyprinodon arcuatus
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.
| Cyprinodon arcuatus | |
|---|---|
Scientific classification  | |
| 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 | |
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.
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References
- NatureServe (2013). "Cyprinodon arcuatus". IUCN Red List of Threatened Species. 2013: e.T202375A15362268. doi:10.2305/IUCN.UK.2013-1.RLTS.T202375A15362268.en.
- 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. 3: 687–705. doi:10.1643/0045-8511(2002)002[0687:TNPSCT]2.0.CO;2.
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