The viviparous quadrupeds of North America

Procyon lotor, Raccoon. (Male. Natural size.)

Pseudostoma Borealis, The Camas Rat. Male, female &#038; young. Natural size.

Pseudostoma bursarius, Canada Pouched Rat. Natural size.

Pseudostoma talpoides, Mole-shaped Pouched Rat. Natural size.

Pteromys Origonensis, Oregon Flying Squirrel. Natural size.

Pteromys volucella, Common Flying Squirrel. Natural size. 1. 2. Males, 3. 4. Females, 5. Young.

Putorius agilis, Little Nimble Weasel. Male &#038; female. Natural size. Winter pelage.

Putorius frenata, Bridled Weasel. Males. Natural size.

Putorius fuscus, Tawny Weasel. Male. Natural size.

Putorius nigripes, Black-footed Ferret. (Natural size.)

Putorius vison, Mink. Natural size. Male &#038; female.

Puttorius ermninea, White Weasel, Stoat. Natural size. 1. Male, 2. Female.

Scallops aquaticus, Common American Shrew Mole. Natural size. Male &#038; Female.

Scallops Brewerii, Brewer&#8217;s Shrew Mole. Male &#038; female. Natural size.

Scalops Townsendii, Townsend&#8217;s Shrew Mole. Males. Natural size.

Sciurus capistratus, Fox Squirrel. Natural size.

Sciurus Carolinensis, Carolina Grey Squirrel. Natural size. Male &#038; Female.

Sciurus cinereus, Cat Squirrel. Natural size.

Sciurus colliaei, Collies Squirrel. Natural size.

Sciurus Douglassii, Douglass&#8217;s Squirrel. Natural size. 1. Male, 2, Female.

Sciurus feruginiventris, Red-bellied Squirrel. Natural size. Male, female and young.

Sciurus Hudsonius, Hudson&#8217;s Bay Squirrel, Chickaree Red Squirrel. Natural size.

Sciurus Lanigunosus, Downy Squirrel. Natural size.

Sciurus leporinus, Hare Squirrel. Natural size.

Sciurus longipilis, Long-haired Squirrel. Natural size.

Sciurus migratorius, Migratory Squirrel. Natural size. 1. Old Male, 2. Female, 3. Young.

Sciurus mollipilosus, Soft-haired Squirrel. Natural size.

Sciurus niger, Black Squirrel. Natural size. 1. Male, 2. Female.

Sciurus nigrenscens, Dusky Sqiurrel. Male. Natural size.

Sciurus Richardsonii, Richardson&#8217;s Columbian Squirrel. Natural size. Male &#038; Female.