Know the dangerous ones
Venomous snakes in Riverside County, California
8 venomous snake species have verified records in Riverside County. Learn to recognize each one, and know what to do if you are bitten.
Field entries

Crotalus ruber Red Diamond RattlesnakeVenomousCrotalus ruber
How to identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Commonly seenFull profile →
Crotalus cerastes SidewinderVenomousCrotalus cerastes
How to identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Commonly seenFull profile →
Crotalus pyrrhus Southwestern Speckled RattlesnakeVenomousCrotalus pyrrhus
How to identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Commonly seenFull profile →
Crotalus oreganus Western RattlesnakeVenomousCrotalus oreganus
How to identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Commonly seenFull profile →
Crotalus atrox Western Diamond-backed RattlesnakeVenomousCrotalus atrox
How to identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Often seenFull profile →
Crotalus mitchellii Speckled RattlesnakeVenomousCrotalus mitchellii
How to identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Often seenFull profile →
Crotalus viridis Prairie RattlesnakeVenomousCrotalus viridis
How to identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Occasionally seenFull profile →
Crotalus scutulatus Mojave RattlesnakeVenomousCrotalus scutulatus
How to identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Rarely seenFull profile →
Looking for all snakes here, not just the venomous ones? See all snakes in Riverside County.