Black-tailed Indigo Snake or Black-tailed Cribo - Drymarchon melanurus
This colubrid of the Drymarchon family is a long, slender snake growing from 1.7 meters to 2.2 meters (5.5 to 7 feet). This specie, Drymarchon melanurus, is sometimes considered a subspecie of Drymarchon corais. The snake is an overall coppery color, with distinctive diagonal black lines on the sides of the neck. Downward pointing black lines can be found under the eye as well. The body gradually darkens, which results in a dark to black tail.
Black-tailed Indigo Snakes can be found in a variety of habitats, including open fields and tropical rainforests from the Yucatan Peninsula to Panama.
Black-tailed Indigo Snake eating an iguana at the Hotel Tierra Maya in Xcalak: