Arborimus longicaudus (red tree vole)
| Class | Mammalia |
| Order | Rodentia |
| Family | Cricetidae |
| Genus | Arborimus |
| Species | Arborimus longicaudus |
| Common | red tree vole |
| Diet | Douglas-fir or spruce needles |
| Habitat | Douglas-fir forests |
| Description | Dorsum and venter are red-orange in color. Tail is long, thick, well-haired and not strongly bicolored (compare to A. albipes). |
| Skull Characteristics | Wide incisive foramina. M3 and m3 are short and wide. Arborimus: 3 loops on lingual side of M3. |
| Notes | Links to more species information:
Smithsonian Animal Diversity Web |