One population from Isla Todos Santos always lacks the red crossbands and is instead uniformly banded with black and white, similar in appearance to the related California kingsnake.
There is also a subspecies of the California mountain kingsnake, the Todos Santos Island Kingsnake, Lampropeltis zonata herrerae (Van Denburgh & Slevin, 1923).
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Predicted Reptiles (20 species) - Reptiles include sagebrush lizard (Sceloporus graciosus), southern and northern alligator lizard (Elgaria sp.), rubber boa (Charina bottae), gopher snake (Pituophis catenifer), Western rattlesnake (Crotalus oreganus), and California mountain kingsnake (Lampropeltis zonata).