The Central American Rattlesnake is large, it can grow up to cm, but the average adult ranges between and cm. It has a robust body, a relatively . Snake venomics of the Central American rattlesnake Crotalus simus and the South American Crotalus durissus complex points to neurotoxicity as an adaptive . Crotalus simus is a venomous pit viper species found in Mexico and Central America. The specific epithet is Latin for ‘flat-nosed’, likely because its head is blunt.

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New herpetofaunal distribution records for the state of Oaxaca, Mexico.

Only venom from neonates contains crotoxin; a constituent typically found in C. Dangerousness Clinical effects uncertain, but related to medically important species, therefore major envenoming cannot be excluded.

WCH Clinical Toxinology Resources

General Shape Large in crotalud, stout bodied rattlesnake with a short tail and a horn-like segmented rattle. In marked contrast, venom from adult C. Taxonomic studies on rattlesnakes of Mainland Mexico.

Check List 11 5: Three subspecies are recognized, including the nominate subspecies described here. Retrieved 28 August 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.

Chimaira, Frankfurt, pp Hoser, R. The bitten limb should then be immobilised as effectively as possible using an extemporised splint or sling.

On the generic classification of the rattlesnakes, with special reference to the Neotropical Crotalus durissus complex Squamata: From Wikipedia, the free encyclopedia. Head is large, broad and very distinct from narrow neck. Venom Neurotoxins Presynaptic neurotoxins. Should any evidence of crotalhs or myolysis develop, antivenom is the principal treatment.


Wiping it once with a damp cloth to remove surface venom is unlikely to do much harm or good but the wound must not be massaged. Other Insufficient clinical reports to know.

A Catalogue of Living and Extinct Species. In other projects Wikimedia Commons Wikispecies.

Avoid peroral intake, absolutely no alcohol. We therefore do not accept legal responsibility for use of the information provided and we require that all users use information from this site at their own crotalsu.


To the Mayans and their living descendants, the Yucatan subspecies C. A reclassification of the rattlesnakes; species formerly exclusively referred to the genera Crotalus and Sistrurus.

Find more photos by Google images search: The herpetofauna of Oaxaca, Mexico: If the offending snake has been killed it should be brought with the patient 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.

Further, in all C. In particular, for bites causing crptalus paralysis, including respiratory paralysis, both airway and respiration may be impaired, requiring urgent and prolonged treatment, which may include the mouth to mask mouth to mouth technique of expired air transfer. Crotapus No case reports for this species, but related species can cause hyperkalaemic cardiotoxicity secondary to myolysis. PLoS One 9 6: We make a reasonable attempt to verify accuracy of information listed on this site.

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An updated list of the amphibians and reptiles of Honduras, with comments on their nomenclature. These include local cauterization, incision, excision, amputation, suction by mouth, vacuum pump or syringe, combined incision and suction “venom-ex” apparatusinjection or instillation of compounds such as potassium permanganate, phenol carbolic soap and trypsin, application of electric shocks or ice cryotherapyuse of traditional herbal, folk and other remedies including the ingestion of emetic plant products and parts of the snake, multiple incisions, tattooing and so on.


Contiguo a la plaza crotalhs deportes, Dulce Nombre de Coronado. The Croralus lives in the low lands of the provinces of Guanacaste and the north of Puntarenas, where it is relatively common on the edges of forests and unperturbed areas.

Local Necrosis Insufficient clinical reports to know, but most likely does not occur. First aid for bites by Viperid snakes not likely to cause significant injury at the bite site or where general systemic effects are likely to be more important than local siimus see listing in Comments section. The venom proteome of 6-week-old C. crotauls

Central American Rattlesnake (Crotalus simus) ยท

Integrated Taxonomic Information System. It should not be assumed that humankind currently knows all there is to know about any species, even for common species. Snakebites in Central and South America: Tweet Please submit feedback about this entry to the curator.

Mesoamerican Herpetology 4 3: Bites are similar to rattlesnake bites in the United States.