| Amphibians - Frogs & Toads | |
| Hyla regilla | Pacific treefrog |
| Scaphiopus hammondii | Western Spadefoot toad |
| Amphibians - Salamander | |
| Batrachoseps pacificus | Pacific Slender salamander |
| Reptiles - Lizards | |
| Anniella pulchra | California Legless lizard |
| Cnemidophorus hyperythrus | Orange-Throated whiptail |
| Elgaria multicarinatus | Southern Alligator lizard |
| Eumeces skiltonianus | Western skink |
| Phrynosoma coronatum | Coastal Horned lizard |
| Sceloporus occidentalis | Western Fence lizard |
| Uta stansburiana | Side-Blotched lizard |
| Reptiles - Snakes | |
| Charina trivirgata | Coastal Rosy boa |
| Crotalus viridis | Southern Pacific rattlesnake |
| Hypsiglena torquata | Night snake |
| Lampropeltis getula | California king snake |
| Leptotyphlops humilis | Western Blind snake |
| Masticophis flagellum | Baja California coachwhip |
| Masticophis lateralis | California whipsnake |
| Pituophis melanoleucus | San Diego gopher snake |
| Thamnophis hammondii | Two-Striped garter snake |
| Historically found at TRNERR | |
| Arizona elegans | Coastal glossy snake |
| Clemmys marmorata | Western pond turtle |
| Crotalus exsul (ruber) | Red diamond rattlesnake |
| Rhinocheilus lecontei | Coastal long nosed snake |
| Non-native Species | |
| Rana catesbiana | bullfrog |
| Trachemys scripta | Red Eared slider |
| Xenopus laevis | African Clawed frog |
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