Snake Ate Another Smaller Snake

• Viperids – vipers, rattlesnakes, copperheads/cottonmouths, adders and bushmasters.
There is a third family containing the opistoglyphous (rear-fanged) snakes as well as the majority of other snake species:
• Colubrids – boomslangs, tree snakes, vine snakes, mangrove snakes, although not all colubrids are venomous.:209