Sistrurus ravus is a venomous pit viper species, found only in Mexico. Three subspecies are currently recognized, including the nominate subspecies described. PDF | On Jun 1, , Rafael Alejandro Calzada-Arciniega and others published Crotalus ravus (Mexican Pygmy Rattlesnake) Diet. PDF | On Sep 30, , Anibal Díaz de la Vega-Pérez and others published Natural History Notes: Crotalus ravus, diet.
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Mesoamerican Herpetology 4 2: Campbell and Lamar  describe this species as being found across the Mexican Plateau in the temperate regions of moderate to high elevations. Geographic variation in the Mexican Pygmy rattlesnake, Sistrurus ravus, with the description of a new subspecies. The type locality given is the “Table land of Mexico.
Oaxacan Pygmy Rattlesnake; exiguus: An updated checklist of the herpetofauna from Guerrero, Mexico.
Mesoamerican Herpetology 3 4: The bitten limb must not be exercised as muscular contraction will promote systemic absorption of venom. A preliminary crotalsu of the rattlesnakes with the descriptions of four new subspecies.
Anfibios y Reptiles; pp. The bitten limb should be immobilised as effectively as possible using an extemporised splint or sling; if available, crepe bandaging of the splinted limb is an effective form of immobilisation. Further, we cannot control how users will interpret the information provided on this site. Check List 11 3: Prey Feeds mainly on lizards, rodents and small mammals and occasionally insects such as grasshoppers and crickets. Crotalinaewith the description of two new species”.
Mexican Pygmy Rattlesnake brunneus: Canthus rostralis is rounded.
IUCN Red List of Threatened Species
Herpetological Review 42 3: Central Plateau Pygmy Rattlesnake. First aid for bites by Viperid snakes likely to cause significant local injury at the bite site see listing in Comments section.
The snakebite victim should be transported as quickly and as passively as possible to the nearest place where they can be seen by a medically-trained person health station, dispensary, clinic or hospital.
Dangerousness Mild envenoming only, not likely to prove lethal. Journal of Biogeography The Venomous Reptiles of the Western Hemisphere.
WilliamsJeff Boundy Best viewed in x resolution or higher. In Sistrurus the lateral hook of the squamosal rzvus an acute angle 45 to 80 degrees with the main part of the bone.
Mexican Pygmy Rattlesnake
We therefore crotalud not accept legal responsibility for use of the information provided and we require that all users use information from this site at their own risk. Venom Nephrotoxins Not likely to be present. Average Venom Qty Three subspecies are currently recognized, including the nominate subspecies described here.
Small Approx 20k version. If the offending snake has been killed it should be brought with the ccrotalus for identification only relevant in areas where there are more than one naturally occurring venomous snake speciesbut be careful to avoid touching the head, as even a dead snake can envenom. Multilocus species delimitation in the Crotalus triseriatus species group Serpentes: Find more photos by Google images search: Retrieved 4 March In Sistrurus, the upper preocular is in contact with the postnasal, the rostral is not curved over the snout, cathus rostralis is sharply angled, dorsal body blotches are square or wider than long.
Birds, mammals, reptiles, amphibians, and plants. The Venomous Reptiles of Latin America.
Retrieved 9 January The principle aim of this site is to provide information useful to improving outcomes for humans suffering from envenoming or poisoning by animals, plants or mushrooms. Crotalus ravus Cope, By contrast in Piersonus gen. Amphibians and reptiles of the state of Hidalgo, Mexico.
Evolutionary drivers of phylogeographical diversity in the highlands of Mexico: Mexico in the Sierra Madre del Sur of central Guerrero.