Mammals

Class Mammalia – Mammals
- Order Didelphimorphia – New World Opossums*
  - Family Didelphidae – New World Opossums*
    - Didelphis virginiana – Virginia Opossum* (common)
- Order Soricomorpha – Shrews and Moles
  - Family Soricidae – Shrews
    - Sorex ornatus – Ornate Shrew (rare)
  - Family Talpidae – Moles
    - Scapanus latimanus – Broad-footed Mole (common)
- Order Chiroptera – Bats (Most of these bats have not been observed on campus, but the species listed are those that may occur here while foraging or roosting.)
  - Family Vespertilionidae – Evening Bats
    - Myotis yumanensis – Yuma Myotis (probably common)
    - Myotis californicus – California Myotis (probably common)
    - Myotis thysanodes – Fringed Myotis (probably uncommon)
    - Myotis ciliolabrum – Western Small-footed Myotis (probably uncommon)
    - Lasiurus cinereus – Hoary Bat (probably common)
    - Lasiurus xanthinus – Western Yellow Bat (probably uncommon)
    - Lasiurus blossevillii – Western Red Bat (probably rare)
    - Eptesicus fuscus – Big Brown Bat (probably common)
    - Pipistrellus hesperus – Western Pipistrelle (probably uncommon)
    - Antrozous pallidus – Pallid Bat (probably uncommon) [SC]
    - Corynorhinus townsendii – Townsend’s Big-eared Bat (probably rare) [SC]
  - Family Molossidae – Free-tailed Bats
    - Tadarida brasiliensis – Brazilian Free-tailed Bat (probably common)
    - Eumops perotis – Western Mastiff Bat (probably rare) [SC]
- Order Lagomorpha – Rabbits, Hares and Pikas
  - Family Leporidae – Rabbits and Hares
    - Sylvilagus audubonii – Desert Cottontail (common)
- Order Rodentia – Rodents
  - Family Sciuridae – Squirrels
    - Sciurus griseus – Western Gray Squirrel (formerly common; completely displaced by Eastern Fox Squirrel between 2005 and 2009)
    - Sciurus niger – Eastern Fox Squirrel* (common)
    - Spermophilus beecheyi – California Ground Squirrel (common)
  - Family Geomyidae – Pocket Gophers
    - Thomomys bottae – Botta’s Pocket Gopher (common)
  - Family Heteromyidae – Pocket Mice, Kangaroo Rats and Kangaroo Mice
    - Chaetodipus californicus – California Pocket Mouse (common)
  - Family Muridae – Old World Rats and Mice
    - Mus musculus – House Mouse* (common)
    - Rattus norvegicus – Norway (Brown) Rat* (common)
    - Rattus rattus – Roof (Black) Rat* (common)
  - Family Cricetidae – New World Rats and Mice
    - Reithrodontomys megalotis – Western Harvest Mouse (common)
    - Peromyscus maniculatus – Deer Mouse (common)
    - Peromyscus californicus – California Mouse (uncommon)
    - Neotoma lepida – Desert Woodrat (common)
    - Neotoma macrotis – Big-eared Woodrat (common)
    - Microtus californicus – California Vole (common)
- Order Carnivora – Carnivores
  - Family Canidae – Coyote, Wolves and Foxes
    - Canis latrans – Coyote (common)
    - Urocyon cinereoargenteus – Common Gray Fox (rare)
  - Family Procyonidae – Raccoon, Ringtail and Coati
    - Procyon lotor – Northern Raccoon (common)
  - Family Mustelidae – Weasels, Badger, Mink, Martin, Fisher and Otters
    - Mustela frenata – Long-tailed Weasel (uncommon)
  - Family Mephitidae – Skunks
    - Mephitis mephitis – Striped Skunk (common)
  - Family Felidae – Cats
    - Lynx rufus – Bobcat (rare)
    - Puma concolor – Mountain Lion (Cougar, Puma; one unconfirmed sighting)
- Order Artiodactyla – Even-toed Ungulates
  - Family Cervidae – Deer, Elk, Moose and Caribou
    - Odocoileus hemionus – Mule Deer (common)

The list does not include domestic cats, dogs, rabbits or livestock; certain native species listed are uncommon or rare due to limited habitat availability and continuing habitat loss on campus. Taxa marked with an asterisk (*) are introduced in California.

[SC] = California Species of Special Concern (California Department of Fish and Game)