Tamias Townsendii, Townsend’s Ground Squirrel. Natural size. (1845-1848)

Scalops Townsendii, Townsend’s Shrew Mole. Males. Natural size. (1845-1848) by John Woodhouse Audubon

Lepus Townsendii, Townsend’s Rocky Mountain Hare. Natural size. Male & Female. (1845-1848) by John Woodhouse Audubon

Tamias quadrivitatus, Four-striped Ground Squirrel. Natural size. 1. Male, 2. Female, 3 & 4. Young. (1845-1848) by John Woodhouse Audubon

Tamias Lysterii, Chipping Squirrel, Hackee, &c. Natural size. Male, female and young, first Autumn. (1845-1848) by John Woodhouse Audubon

1. Arvicola Townsendii, Townsend’s Arvicola; 2. Arvicola nasuta, Sharp-nosed Arvicola. Natural size. 3. Mus riparius, Bank Rat. Natural size. (1845-1848) by John Woodhouse Audubon

Sciurus Lanigunosus, Downy Squirrel. Natural size. (1845-1848) by John Woodhouse Audubon

Sciurus colliaei, Collies Squirrel. Natural size. (1845-1848) by John Woodhouse Audubon

Sciurus cinereus, Cat Squirrel. Natural size. (1845-1848) by John Woodhouse Audubon

Sciurus capistratus, Fox Squirrel. Natural size. (1845-1848) by John Woodhouse Audubon