About Crotalus intermedius Troschel, 1865
This species, Crotalus intermedius Troschel, 1865, grows to a total length between 50 and 60 cm (20 to 24 inches). On average, males are somewhat larger than females. Klauber (1972) recorded a maximum known length of 57 cm (22 inches), though captive individuals of this species may reach larger sizes. This snake is native to central and southern Mexico. Its confirmed distribution includes specific regions: southeastern Hidalgo, southern Tlaxcala, northeastern and south-central Puebla, west-central Veracruz, multiple mountain areas across Oaxaca (Sierra Juárez, Cerro San Filipe and its surrounding mountains, Sierra de Cuatro Venados, Sierra Madre del Sur, and Sierra de Mihuatlán), and the Sierra Madre del Sur region of Guerrero west of Chilpancingo. No specific type locality was included in the original published description of the species, but the broader location "Mexico" can be inferred from the original publication's title. Smith and Taylor (1950) later restricted the type locality to "El Limón, Totalco, Veracruz, Mexico". Much of this species' range occurs within seasonally dry pine-oak forest. It has also been documented in cloud forest near Omilteme in Guerrero, and in desert habitats near Cacaloapan in Puebla and Pachuca in Hidalgo. It occurs at elevations ranging from 2,000 m to 3,200 m.
