Neotamias ruficaudus
| Red-tailed Chipmunk
(Neotamias ruficaudus) | |
|---|---|
| Range | |
 | |
| Taxonomic classification | |
| Order: | Rodentia |
| Suborder: | Sciuromorpha |
| Family: | Sciuridae |
| Subfamily: | Xerinae |
| Tribe: | Tamiini |
| Genus: | Neotamias |
| Binomial details | |
| Neotamias ruficaudus (A. H. Howell, 1920) | |
| Other resources | |
| Full taxonomic details at MDD | |
Description
From Best (1993): "ruficaudus is a large, dark-colored chipmunk. The general tone of the back is deep orange-brown, the five dark stripes are black to fuscous, and the four pale ones are grayish to tawny and creamy white. The underparts of the body are creamy white and washed with pale pinkish-buff. The underside of the tail is brilliant rufous and bordered with black and pale pinkish-cinnamon. The top of the head is cinnamon and fuscous sprinkled with grayish white (Soper, 1964)."
Museum images
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Holotype: USNM 72294. Neotamias ruficaudus ruficaudus. Adult. Upper St. Mary’s Lake, Glacier County, Montana. Collected 30 May 1895. -
Holotype: USNM 72294. Neotamias ruficaudus ruficaudus. Adult. Upper St. Mary’s Lake, Glacier County, Montana. Collected 30 May 1895. -
Holotype: USNM 72294. Neotamias ruficaudus ruficaudus. Adult. Upper St. Mary’s Lake, Glacier County, Montana. Collected 30 May 1895. -
Holotype: USNM 28487. Neotamias ruficaudus simulans. Adult female. Coeur d’Alene, Kootenai County, Idaho. Collected 1 June 1891. -
Holotype: USNM 28487. Neotamias ruficaudus simulans. Adult female. Coeur d’Alene, Kootenai County, Idaho. Collected 1 June 1891. -
Holotype: USNM 28487. Neotamias ruficaudus simulans. Adult female. Coeur d’Alene, Kootenai County, Idaho. Collected 1 June 1891.
External measurements
Length measurements are in millimeters (mm) and weight measurements are in grams (g), unless stated otherwise. If available, the sample size (n=) is provided. If a range is not provided and n= is not given, then the listed measurement represents an average.
| Part of range | Reference | Total length | Tail length | Hindfoot length | Ear length | Mass |
|---|---|---|---|---|---|---|
| Montana (Glacier County) | Holotype: USNM 72294 | 227 | 118 | 32 |
Skull
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Holotype: USNM 72294. Neotamias ruficaudus ruficaudus. Adult. Upper St. Mary’s Lake, Glacier County, Montana. Collected 30 May 1895. Dorsal view of the skull. -
Holotype: USNM 72294. Neotamias ruficaudus ruficaudus. Adult. Upper St. Mary’s Lake, Glacier County, Montana. Collected 30 May 1895. Ventral view of the skull. -
Holotype: USNM 72294. Neotamias ruficaudus ruficaudus. Adult. Upper St. Mary’s Lake, Glacier County, Montana. Collected 30 May 1895. Lateral view of the skull. -
Holotype: USNM 72294. Neotamias ruficaudus ruficaudus. Adult. Upper St. Mary’s Lake, Glacier County, Montana. Collected 30 May 1895. Dorsal view of the mandible. -
Holotype: USNM 72294. Neotamias ruficaudus ruficaudus. Adult. Upper St. Mary’s Lake, Glacier County, Montana. Collected 30 May 1895. Lateral view of the left mandible.
Similar species
References
Best TL. 1993. Tamias ruficaudus. Mammalian Species 452:1-7. https://doi.org/10.2307/3504175
Soper JD. 1964. The mammals of Alberta. Edmonton (Alberta, CA): The Hamly Press Ltd.