Order Didelphimorphia (Family Didelphidae: Virginia opossum)
Order Sirenia (Family Trichechidae: West Indian manatee)
Order Cingulata (Family Dasypodidae: Nine-banded armadillo)
Order Lagomorpha (Family Ochotonidae: American pika ; Family Leporidae, Eastern cottontail and allies)
Order Soricomorpha (Family Soricidae: Northern short-tailed shrew, with notes on water shrew and allies ; Family Talpidae: Star-nosed mole and allies)
Order Chiroptera (Family Molossidae: Mexican free-tailed bat and allies)
Order Carnivora (Family Felidae: Bobcat and Canada lynx ; Cougar) ; (Family Canidae: Coyote ; Wolf ; Common gray fox, with notes on kit and swift foxes ; Arctic fox ; Red fox) ; (Family Ursidae: American black bear ; Brown bear ; Polar bear) ; (Family Odobenidae: Walrus) ; (Family Phocidae: Northern elephant seal) ; (Family Mustelidae: Sea otter ; North American river otter ; Wolverine ; Fisher and American marten ; Weasels and black-footed ferret ; American mink ; American badger) ; (Family Mephitidae: Striped skunk, with notes on spotted skunks) ; (Family Procyonidae: Raccoon)
Order Artiodactyla (Family Tayassuidae: Collared peccary) ; (Family Cervidae: Moose ; White-tailed deer and mule deer ; Elk) ; (Family Antilocapridae: Pronghorn) ; (Family Bovidae: American bison ; Mountain goat ; Bighorn sheep)
Order Rodentia (Family Aplodontiidae: Mountain beaver) ; (Family Sciuridae: Eastern gray squirrel, eastern fox squirrel , and allies ; Red squirrel and Douglas's squirrel, with notes on flying squirrels ; Black-tailed prairie dog ; Yellow-bellied marmot and woodchuck ; Uinta ground squirrel and allies ; Eastern chipmunk and allies) ; (Family Castoridae: American beaver) ; (Family Heteromyidae: Desert kangaroo rat and allies) ; (Family Cricetidae: Meadow vole and allies ; Common muskrat ; Woodrats ; North American deermouse, with notes on California deermouse) ; (Family Erethizontidae:, North American porcupine).
