About Crotalus ehecatl Carbajal-Márquez, Cedeño-Vázquez, Martínez-Arce, Neri-Castro & Machkour-M'Rabet, 2020
Crotalus ehecatl is a large, heavy-bodied snake, with adult individuals reaching maximum lengths of up to 165.3 cm, or approximately 65 inches. Its body pattern is made up of a series of dark, diamond-shaped blotches set against a lighter background that can range in color from gray to brown. The head has a distinctive lance-shaped pattern. This species displays sexual dimorphism, with males having significantly longer tails than females. Its diet consists primarily of mammals, and most feeding occurs during the rainy season. During warmer months, this snake is crepuscular and nocturnal; during cooler months, it is active during the day. Crotalus ehecatl, commonly known as the Tehuantepec Isthmus Neotropical rattlesnake, is endemic to Mexico. It is specifically distributed along the Pacific versant from central-southern Oaxaca, southward across the Tehuantepec Isthmus to west of Tonalá, Chiapas, and also occurs in the Grijalva River basin as far as Comitán, Chiapas. It inhabits tropical deciduous forests and seasonal rainforests, and prefers open canopy habitats with rocky outcroppings.
