| Author: | Erxleben, 1777. |
| Citation: | Syst. Regn. Anim., 1: 416. |
| Common Name: | Red Squirrel |
| Type Locality: | "ad fretum Hudsonis" Restricted by A. H. Howell (1936:134) to the mouth of Severn River, Hudson Bay, Ontario, Canada. |
| Distribution: | Alaska (USA), throughout Canada (south of tundra); including Vancouver Isl, W USA in mountain states; NE USA, south to NW South Carolina. |
| Status: | U.S. ESA – Endangered as T. h. grahamensis; IUCN – Critically Endangered as T. h. grahamensis; otherwise Lower Risk (lc). |
| Comments: | Includes fremonti; see Hardy (1950). See also douglasii. Reviewed by Steele (1998, Mammalian Species No. 586). Arbogast et al. (2001) found that mitochondrial DNA differed only slightly among the three species of Tamiasciurus. |
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