| Rio Grande darter | |
|---|---|
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| Scientific classification  | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | Perciformes | 
| Family: | Percidae | 
| Genus: | Etheostoma | 
| Species: | E. grahami  | 
| Binomial name | |
| Etheostoma grahami (Girard, 1859)  | |
| Synonyms[2] | |
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The Rio Grande darter (Etheostoma grahami) is a small species of ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae which includes the perches, ruffs and pike-perches. It is endemic to the lower Rio Grande drainage of the United States and Mexico. It inhabits riffles over substrates of gravel or rubble. This species can reach a length of 6 cm (2.4 in), though most only reach about 3 cm (1.2 in).[2] The Rio Grande darter was first formally described as Oligocephalus grahami in 1859 by the French zoologist Charles Frédéric Girard (1822-1895) with the type locality given as the Devils River in Texas.[3] The specific name honors the American soldier and topographer James Duncan Graham (1795-1865), who led the expedition on which the type was collected by John H. Clark.[4]
References
- ↑ NatureServe (2019). "Etheostoma grahami". IUCN Red List of Threatened Species. 2019: e.T8115A129976217. doi:10.2305/IUCN.UK.2019-2.RLTS.T8115A129976217.en. Retrieved 17 November 2021.
 - 1 2 Froese, Rainer; Pauly, Daniel (eds.) (2019). "Etheostoma grahami" in FishBase. December 2019 version.
 - ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Oligocephalus grahami". Catalog of Fishes. California Academy of Sciences. Retrieved 6 October 2019.
 - ↑ Girard, C. F. (1859). "Ichthyological notices". Proceedings of the Academy of Natural Sciences of Philadelphia. 11: 100–104.
 

