Crotalus polystictus facts for kids
Quick facts for kids Crotalus polystictus |
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Crotalus
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polystictus
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The Mexican lance-headed rattlesnake (Crotalus polystictus) is a type of venomous snake found in central Mexico. It is a pit viper species, which means it has special heat-sensing pits on its head. These pits help it find prey in the dark. This snake is also known simply as the lance-headed rattlesnake. No different types (subspecies) of this snake are known at this time.
What Does the Mexican Lance-Headed Rattlesnake Look Like?
Adult Mexican lance-headed rattlesnakes usually grow to be about 60 to 70 centimeters (about 23 to 27 inches) long. This is roughly the length of a typical school ruler. Some very large snakes of this species can even reach up to 100 centimeters (about 39 inches). That's about a meter long!
Where Does the Lance-Headed Rattlesnake Live?
This snake lives on the high plains, or plateau, of central Mexico. You can find it in areas from southern Zacatecas and northeastern Colima. Its range stretches east to east-central Veracruz. These snakes live at elevations between 1,450 and 2,600 meters (about 4,757 to 8,530 feet) above sea level. The first place where this snake was officially found and described was called "Table Land, Mexico." Later, scientists suggested a more specific location: "Tupátaro, Guanajuanto, Mexico."
Is the Mexican Lance-Headed Rattlesnake Endangered?
The Mexican lance-headed rattlesnake is currently listed as a species of Least Concern on the IUCN Red List of Threatened Species. This list helps track how many animals are at risk around the world. A species is listed as "Least Concern" when it has a wide distribution. It also means there is a presumed large population, or it is not declining quickly. When last checked in 2007, the population trend for this snake was noted as decreasing.
