Stenorrhina freminvillei, the blood snake or slaty gray snake, is a species of snake of the family Colubridae.

The snake is found in Mexico, Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica.
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References 

Stenorrhina
Reptiles described in 1854
Reptiles of Mexico
Reptiles of Guatemala
Reptiles of El Salvador
Reptiles of Honduras
Reptiles of Nicaragua
Reptiles of Costa Rica
Taxa named by André Marie Constant Duméril
Taxa named by Gabriel Bibron
Taxa named by Auguste Duméril