| Inventory of Vertebrates | |||
| The following list is an inventory of all vertebrate species found at HREC with the exception of class Aves (for birds, see bird list). | |||
| Class | Order | Family | Species |
| Mammalia | Didelphimorphia (Marsupials) | Didelphidae | Opossum (Didelphis virginiana) |
| Insectivora (Shrews and Moles) | Soricidae | Trowbridge's Shrew (Sorex trowbridgii) | |
| Vagrant Shrew (Sorex vagrans) | |||
| Talpidae | Broad-footed Mole (Scapanus latimanus) | ||
| Chiroptera (Bats) | Vespertilionidae | Big Brown Bat (Eptesicus fuscus) | |
| California Myotis (Myotis californicus) | |||
| Fringed Myotis (Myotis thysanodes) | |||
| Hairy-winged Myotis (Myotis volans) | |||
| Hoary Bat (Lasiurus cinereus) | |||
| Little Brown Myotis (Myotis lucifugus) | |||
| Long-eared Myotis (Myotis evotus) | |||
| Pallid Bat (Antrozous pallidus) | |||
| Silver-haired Bat (Lasionycteris noctivagans) | |||
| Western Big-eared Bat (Plecotus townsendii) | |||
| Western Pipistrelle (Pipistrellus hesperus) | |||
| Western Red Bat (Lasiurus blossevillii) | |||
| Yuma Myotis (Myotis yumanensis) | |||
| Molossidae | Brazilian Free-tailed Bat (Tadarida brasiliensis) | ||
| Lagomorpha (Rabbits, Hares, and Pikas) | Leporidae | Black-tailed Hare (Lepus californicus) | |
| Brush Rabbit (Sylvilagus bachmani) | |||
| Rodentia (Squirrels, Rats, Mice, and Relatives) | Sciuridae | California Ground Squirrel (Spermophilus beecheyi) | |
| Sonoma Chipmunk (Eutamias sonomae) | |||
| Western Gray Squirrel (Sciurus griseus) | |||
| Erethizontidae | North American Porcupine (Erethizon dorsatum) | ||
| Geomyidae | Botta’s Pocket Gopher (Thomomys bottae) | ||
| Heteromyidae | Heerman’s Kangaroo Rat (Dipodomys heermanni) | ||
| Cricetidae | Brush Mouse (Peromyscus boylei) | ||
| California Vole (Microtus californicus) | |||
| Common Muskrat (Ondatra zibethicus) | |||
| Deer Mouse (Peromyscus maniculatus) | |||
| Dusky-footed Woodrat (Neotoma fuscipes) | |||
| Pinyon Mouse (Peromyscus truei) | |||
| Western Harvest Mouse (Reithrodontomys megalotis) | |||
| Muridae | House Mouse (Mus musculus) | ||
| Norway Rat (Rattus norvegicus) | |||
| Carnivora (Carnivores) | Canidae | Coyote (Canis latrans) | |
| Gray Fox (Urocyon cinereoargenteus) | |||
| Red Fox (Vulpes fulva) | |||
| Ursidae | Black Bear (Ursus americanus) | ||
| Procyonidae | Raccoon (Procyon lotor) | ||
| Ringtail (Bassariscus astutus) | |||
| Mustelidae | Badger (Taxidea taxus) | ||
| Long-tailed Weasel (Mustela frenata) | |||
| North American River Otter (Lontra canadensis) | |||
| Striped Skunk (Mephitus mephitus) | |||
| Western Spotted Skunk (Spilogale gracilis) | |||
| Felidae | Bobcat (Lynx rufus) | ||
| Mountain Lion (Felis concolor) | |||
| Artiodactyla (Pigs, Deer, and Relatives) | Suidae | Feral Pig (Sus scrofa) | |
| Cervidae | Black-tailed Deer (Odocoileus hemionus columbianus) | ||
| Tule Elk (Cervus canadensis nannodes) | |||
| Amphibia | Caudata (Salamanders) | Ambystomatidae | Pacific Giant Salamander (Dicamptodon ensatus) |
| Salamandridae | California Newt (Taricha torosa) | ||
| Red-bellied Newt (Taricha rivulaaris) | |||
| Rough-skinned Newt (Taricha granulosa) | |||
| Plethodontidae | Arboreal Salamander (Aneides lugubris) | ||
| Black Salamander (Aneides flavipunctatus) | |||
| California Slender Salamander (Batgrachoseps attenuatus) | |||
| Ensatina (Ensatina escholtzi) | |||
| Salientia (Frogs and Toads) | Bufonidae | Western Toad (Bufo boreas) | |
| Hylidae | Pacific Treefrog (Hyla regilla) | ||
| Ranidae | Bullfrog (Rana catesbeiana) | ||
| Foothill Yellow-legged Frog (Rana boylei) | |||
| Red-legged Frog (Rana aurora) | |||
| Reptilia | Testudines (Turtles) | Emydidae | Western Pond Turtle (Clemmys marmorata) |
| Squamata (Lizards and Snakes) | Iguanidae | Sagebrush Lizard (Sceloporus graciosus) | |
| Western Fence Lizard (Sceloporus occidentalis) | |||
| Scincidae | Western Skink (Eumeces skitonianus) | ||
| Teiidae | Western Whiptail (Cnemidophorus tigris) | ||
| Anguidae | Northern Alligator Lizard (Gerrhonotus coeruleus) | ||
| Southern Alligator Lizard (Gerrhonotus multicarinatus) | |||
| Colubridae | Common Garter Snake (Thamnophis sirtalis) | ||
| Common Kingsnake (Lampropeltis getulus) | |||
| Gopher Snake (Pituophis malanoleucus) | |||
| Racer (Coluber constrictor) | |||
| Ringneck Snake (Diadophis pnuctatus) | |||
| Sharp-tailed Snake (Contia tenuis) | |||
| Striped Racer (Masticophis lateralis) | |||
| Western Aquatic Garter Snake (Thamnophis couchi) | |||
| Viperidae | Western Rattlesnake (Crotalus viridis) | ||
| Osteichthyes (Bony Fish) | Clupeiformes (Herring-like fishes, Tarpons, Salmonids, & Relatives) | Salmonidae | Rainbow Trout (Salmo gairdneri) |
| Cypriniformes (Cyprinids) | Cyprinidae | California Roach (Gesoerikeycas symmetrucus) | |
| Sacramento Pikeminnow (Ptychocheilus grandis) | |||
| Catostomidae | Sacramento Sucker (Catostomus occidentalis) | ||
| Cyprinodontiformes | Poeciliidae | Mosquito Fish (Gambusia affinis) | |
| Perciformes (Perchlike Fishes) | Centrarchidae | Black Crappie (Pomoxis nigromaculatus) | |
| Green Sunfish (Lepomis cyanellus) | |||
| Northern Largemouth Bass (Micropterus salmoides) | |||
| Sacramento Perch (Archoplites interruptus) | |||
| Scorpaeniformes | Cottidae | Riffle Sculpin (Cottus gulosus) | |