Hokkaido squirrel (subspecies of red squirrel, Sciurus vulgaris orientis)
chipmunk (esp. the Siberian chipmunk, Tamias sibiricus)
ground squirrel (esp. a ground squirrel of North America or Africa)
Japanese squirrel (Sciurus lis)
red squirrel (Sciurus vulgaris)
Taiwanese squirrel (subspecies of Pallas's squirrel, Callosciurus erythraeus thaiwanensis)
ground squirrel (esp. the Daurian ground squirrel, Spermophilus dauricus)
Sciuromorpha (suborder of rodents)