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Crotalus morulus, or the Tamaulipan rock rattlesnake, is a species of rattlesnake from Mexico, closely related to and previously considered a subspecies of Crotalus lepidus. [2] [3] The name morulus comes from the Latin word morus for mulberry in reference to their mottled patterns. As with all rattlesnakes, it is venomous. [4]
[3]: 516 In addition, species that occur further north, where weather is colder during much of the year and the feeding and growing season is short, may reproduce only every other year or less. Those found in central and southern Mexico or the tropics have reproductive cycles that correspond mostly with the rainy season. [3]: 519
Crotalus armstrongi, the western dusky rattlesnake, is a species of pit viper in the family Viperidae. The species is endemic to Mexico . It is a relatively small venomous snake and is known for its distinctive dusky coloration. [ 1 ]
Crotalus ehecatl is a large and heavy-bodied snake, with adults reaching lengths of up to 165.3 cm (approximately 65 inches). The body pattern consists of a series of dark, diamond-shaped blotches on a lighter background, which can vary from gray to brown.
Crotalus culminatus is found across much of southwestern Mexico, inhabiting a wide range of elevations from near sea level up to 2285 meters in the Sierra de Coalcomán.It can be found in arid environments, tropical scrub forests, savannas, and mesic forests, with rocky outcroppings being central to its habitat needs.
The mountains of eastern Mexico southeastward on the Atlantic versant and lowlands though Central America to central Panama. On the Pacific versant, they occur in isolated populations in east-central and southern Mexico, Guatemala, El Salvador, Costa Rica, and Panama. Mixcoatlus: Jadin, H.M.Smith & Campbell, 2011 3 Mexican pit vipers Mexico ...
Crotalus cerastes, known as the sidewinder, horned rattlesnake or sidewinder rattlesnake, [3] is a pit viper species belonging to the genus Crotalus (the rattlesnakes), and is found in the desert regions of the Southwestern United States and northwestern Mexico. Like all other pit vipers, it is venomous.
S. t. edwardsii is found in extreme southeastern Arizona, central and southern New Mexico, West Texas about as far north and east as the Colorado River, in the Rio Grande Valley, in many of the Gulf Coast counties about as far north as Brazoria, and on several barrier islands including North Padre Island, Matagorda Island, and San José Island.