Coluber constrictor
![](/Images/godic/202501/05/Coluber_constrictor_anthicus3518.jpg")
![](/Images/godic/202501/05/Coluber_constrictor_distribution3518.png")
![Closeup of the head of Coluber constrictor mormon](/Images/godic/202501/05/Coluber_constrictor_mormon_--_closeup_of_face,_side3518.jpg")
![Northern Black Racer, C. c. constrictor](/Images/godic/202501/05/Coluber_constrictorPCCP20030612-1115B3518.jpg")
Coluber constrictor is a species of nonvenomous, colubrid snake, endemic to North America and Central America. Eleven subspecies, including the nominotypical subspecies, are recognized, which as a group are commonly referred to as the eastern racers.