A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
Urocitellus | |
---|---|
Richardson's ground squirrel in Manitoba | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Rodentia |
Family: | Sciuridae |
Tribe: | Marmotini |
Genus: | Urocitellus Obolenskij, 1927 |
Species | |
See text. |
Urocitellus is a genus of ground squirrels. They were previously believed to belong to the much larger genus Spermophilus, but DNA sequencing of the cytochrome b gene showed that this group was paraphyletic to the prairie dogs and marmots,[1] and could therefore no longer be retained as a single genus. As a result, Urocitellus is now considered as a genus in its own right.[2]
All but two species are native to the northern and western parts of North America, from California and Minnesota through the north-western United States and western Canada; the Arctic ground squirrel inhabits Arctic terrain on both sides of the Bering Strait, while the long-tailed ground squirrel is exclusively found in Asia. The name of the genus is said to be derived from the Latin uro, meaning "tail" and citellus for "ground squirrel".[2] The proper word for "tail" in classical Latin is cauda.[3] Oura (οὐρά) is the ancient Greek word for "tail".[4]
Species
Thirteen species are currently identified:
Genus Urocitellus
- Uinta ground squirrel, Urocitellus armatus
- Belding's ground squirrel, Urocitellus beldingi
- Northern Idaho ground squirrel, Urocitellus brunneus
- Merriam's ground squirrel, Urocitellus canus
- Columbian ground squirrel, Urocitellus columbianus
- Wyoming ground squirrel, Urocitellus elegans
- Southern Idaho ground squirrel, Urocitellus endemicus
- Piute ground squirrel, Urocitellus mollis
- Arctic ground squirrel, Urocitellus parryii
- Richardson's ground squirrel, Urocitellus richardsonii
- Townsend's ground squirrel, Urocitellus townsendii
- Long-tailed ground squirrel, Urocitellus undulatus
- Washington ground squirrel, Urocitellus washingtoni
References
- ^ Herron, Matthew D.; Castoe, Todd A.; Parkinson, Christopher L. (2004). "Sciurid phylogeny and the paraphyly of Holarctic ground squirrels (Spermophilus)". Molecular Phylogenetics and Evolution. 31 (3): 1015–30. doi:10.1016/j.ympev.2003.09.015. PMID 15120398.
- ^ a b Helgen, Kristofer M.; Cole, F. Russel; Helgen, Lauren E. & Wilson, Don E (2009). "Generic Revision in the Holarctic Ground Squirrel Genus Spermophilus" (PDF). Journal of Mammalogy. 90 (2): 270–305. doi:10.1644/07-MAMM-A-309.1. Archived from the original (PDF) on 15 April 2012. Retrieved 25 February 2016.
- ^ Lewis, C.T. & Short, C. (1879). A Latin dictionary founded on Andrews' edition of Freund's Latin dictionary. Oxford: Clarendon Press.
- ^ Liddell, H.G. & Scott, R. (1940). A Greek-English Lexicon. Revised and augmented throughout by Sir Henry Stuart Jones with the assistance of Roderick McKenzie. Oxford: Clarendon Press.
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