Classification
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Hypsiglena - North American Nightsnakes
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Hypsiglena ochrorhyncha - Coast Nightsnake
- H. o. baueri - Bauer's Nightsnake
- H. o. gularis - Isla Partida Norte Nightsnake
- H. o. klauberi - San Diego Nightsnake
- H. o. martinensis - Isla San Martin Nightsnake
- H. o. nuchalata - California Nightsnake
- H. o. ochrorhyncha - Coast Nightsnake
- H. o. unaocularis - Clarion Island Nightsnake
- H. o. venusta - Islands Nightsnake
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Hypsiglena ochrorhyncha - Coast Nightsnake
