Arctomys monax, Maryland Marmot, Woodchuck, Groundhog. Natural size. Old & young.John Woodhouse Audubon1845-1848
Spermophilus Franklinii, Franklin's Marmot Squirrel. (Male & female. Natural size.)John Woodhouse Audubon1845-1848
Scallops aquaticus, Common American Shrew Mole. Natural size. Male & Female.John Woodhouse Audubon1845-1848
Putorius agilis, Little Nimble Weasel. Male & female. Natural size. Winter pelage.John Woodhouse Audubon1845-1848
Spermophilus tridecemlineatus, Leopard Spermophile. Natural size. Male and female.John Woodhouse Audubon1845-1848
Sciurus sub-auratus, Orange-bellied Squirrel. Male & female. Natural size.John Woodhouse Audubon1845-1848
Sciurus Hudsonius, Hudson's Bay Squirrel, Chickaree Red Squirrel. Natural size.John Woodhouse Audubon1845-1848
Sciurus feruginiventris, Red-bellied Squirrel. Natural size. Male, female and young.John Woodhouse Audubon1845-1848
Spermophilus ludovicianus, Prairie Dog-Prairie Marmot Squirrel. Natural Size. 1. Male, 2. Female, 3. Young.John Woodhouse Audubon1845-1848
Sciurus Carolinensis, Carolina Grey Squirrel. Natural size. Male & Female.John Woodhouse Audubon1845-1848
Fig. 1. Georychus helvolus, Tawny Lemming. Natural size ; Fig. 2. Georychus trimucronatus, Back's Lemming. Natural size.John Woodhouse Audubon1845-1848
