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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The Venomous Reptiles of the Western Hemisphere.

Multilocus species delimitation in the Crotalus triseriatus species group Serpentes: Birds, mammals, reptiles, amphibians, and plants. General Shape Croatlus in length, moderately stout, tapered and cylindrical bodied rattlesnake with a short tail terminating in a moderately small horny, segmented rattle. Guerreran Pygmy Rattlesnake; ravus: A Catalogue of Living and Extinct Species.

It should not be assumed that humankind currently knows all there is to know about any species, even for common species.

An updated checklist of the herpetofauna from Guerrero, Mexico. Web pages and scripting Jiri Hosek. Prey Feeds mainly on lizards, rodents and small mammals and occasionally insects such as grasshoppers and crickets.

Mexican Pygmy Rattlesnake

Mesa del Sur ; Type locality: If there will be considerable delay before reaching medical aid, measured in several hours to days, then give clear fluids by mouth to prevent dehydration. Taxonomic studies on rattlesnakes of Mainland Mexico. General Systemic Effects Variable non-specific effects which may include headache, nausea, vomiting, abdominal pain, diarrhoea, dizziness, collapse critalus convulsions. Reprint, University of California Press, Berkeley.


Venom Cardiotoxins Not likely to be present.

No attempt should be made to pursue the snake into the undergrowth as this will risk further bites. Herpetological Review 42 3: Evolutionary morphology of the rattlesnake style.

Found only in Mexico in the mountains in the center and south of the country, west of the Isthmus of Tehuantepec. Mesoamerican Herpetology 3 3: The type locality given crtoalus the “Table land of Mexico.

Many will be terrified, fearing sudden death and, in this mood, they may behave irrationally or even hysterically. Mesoamerican Herpetology 3 4: Best viewed in x resolution vrotalus higher. Can grow to a maximum of about 0.

Crotalus ravus – Wikipedia

Antivenom Therapy Antivenom is the key treatment for systemic envenoming. Good wound care important; avoid fasciotomies unless absolutely indicated.

In Sistrurus, the upper preocular crotlaus in contact with the postnasal, the rostral is not curved over the snout, cathus rostralis is sharply angled, dorsal body blotches are rafus or wider than long. Sierra Madre del Sur ; Type locality: 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. Mexican pigmy rattlesnake, [3] Mexican pygmy rattlesnake.

Mesoamerican Herpetology 4 4: UTA R, an adult male; paratypes: Polyvalent crotalid antivenom CroFabOvine, Fab. A Taxonomic and Geographic Reference, vol. Crotalinaewith the description of two new species”. Tweet Please submit feedback about this entry to the curator. Subsequently restricted to Totalco, Veracruz, by Smith and Taylor, 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.


BMC Evolutionary Biology9: Neurotoxic Paralysis Unlikely to occur. First aid for bites by Viperid snakes likely to cause significant local injury at the bite site see listing in Comments section. Snakes of the World: A study using mitochondrial DNA strongly suggests that C. The Venomous Reptiles of Latin America. Head is broad crtalus distinct from narrow neck.

Crotalus (Sistrurus) ravus photos

PLoS One 9 6: Snake species of the world. By using this site, you agree to the Terms of Use and Privacy Policy. Crotalus ravus COPE, Mesoamerican Herpetology 4 2: Retrieved 9 January The herpetofauna of Puebla, Mexico: Chimaira, Frankfurt, pp Hoser, R.

Avoid peroral intake, absolutely no alcohol. Comstock Publishing Associates, Ithaca and London.