Neotropical: Found from S USA through Mexico south to Costa
Rica. In Mexico on both coasts, on Pacific side from Arizona and
on Atlantic side from Tamaulipas south. Also on Yucatan peninsula.
Physical characteristics: Medium
-sized, quite slender snake (75 - 100 cm). Head moderately narrow,
distinct from neck. Pupils round, eyes small. Scales on upper body
weakly keeled, on sides smooth. Color pattern very variable throughout
the range! In some regions no obvious pattern present and body color
from greenish, olive to gray or even red. In other geographical
areas rectangular blotches on upper body and sides, usually lined
with black. Dark, crescent shaped blotch usually present on upper
surface of the head. Underbody usually cream or white.
Food habits: Small
mammals (also bats) and occasionally birds.
Reproduction: Oviparous. Reproduces
possibly throughout the year. Typical clutch 3 -7 eggs.
Behavior: Terrestrial, nocturnal.
Habitat: Variety of forested habitats
and dry scrub.