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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Wiping it once with a damp cloth to remove surface venom is unlikely to do much aimus or good but the wound must not be massaged. Habitat Usually at elevations up to about m, but has been found simud m Mexico Guatemala and Costa Rica.

The vertebral scales are about as prominently keeled as the fourth row down on the flanks with the vertebral scales as the first row. No sedatives outside hospital. Mainly semi-arid regions, dry tropical forest, thorn forest, pine-oak forest, savanna and scrub.

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Crotalus simus – Wikipedia

Production Presentation Technological Development. Venom Procoagulants Present but not defined. Prey Feeds mainly on lizards, rodents, small mammals and birds. The venom proteome of 6-week-old C.

Avoid peroral intake, absolutely no alcohol. Web crtalus and scripting Jiri Hosek.

After ensuring the patient and onlookers have moved out of range of further strikes by the snake, the bitten person should be reassured and persuaded to lie down and remain still. Other Insufficient clinical reports to know. Wikispecies has information related to Crotalus simus. Mesoamerican Herpetology 4 3: From Wikipedia, the free encyclopedia.

The specific epithet is Latin for “flat-nosed”, likely because its head is blunt compared with lanceheads Bothrops. Eyes are medium to moderately small in size with vertically elliptical pupils.


PLoS One 9 6: Calzada de Tlalpan No. A reclassification of the rattlesnakes; species formerly exclusively referred to the genera Crotalus and Sistrurus.

WCH Clinical Toxinology Resources

Their overall toxin compositions explain the outcome of envenomation by these species. This page was last edited on 12 Novemberat Myotoxicity No case reports for this species, but related species can cause systemic myolysis. The bitten limb must not be exercised as muscular contraction will promote systemic absorption of venom. Contiguo a la plaza de deportes, Dulce Nombre de Coronado.

Should any evidence of paralysis or myolysis develop, antivenom is the principal treatment. 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.

Wikimedia Commons has media related to Crotalus simus.

Venom Myotoxins Secondary myotoxic activity may be present. It has a robust body, crotaljs relatively small head, not too differentiated from the neck, a round snout and an evident spinal crest on the simuss third of the body.

General Shape Large in length, stout bodied rattlesnake with a short tail and a horn-like segmented rattle. It has a light brown to cream-colored base, with an adorned pattern of dark rhomboidal designs on the back. It should not be assumed that humankind currently knows all there is to know about any species, even for common species. Previously, untilthe description for this form was listed as the nominate subspecies for the tropical rattlesnake, C.

The Simuus Reptiles of the Western Hemisphere. The snakes of Honduras. Universidad de San Carlos de Guatemala, pp.

If there is any impairment of vital functions, such as problems with respiration, airway, circulation, heart function, these wimus be supported as a priority.


Retrieved from ” https: 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. The basis for reassurance is the fact that many venomous bites do not result in envenoming, the relatively slow progression to severe envenoming hours following elapid bites, days following viper bites and the effectiveness of modern medical treatment.


The following should also be noted when reading information contained within the databases on this website: New herpetofaunal distribution records for the state of Oaxaca, Mexico. Bites are similar to rattlesnake bites in the United States.

Head is large, broad and very distinct from narrow neck.

First aid for bites crootalus Viperid snakes not likely to cause significant injury at the bite site or where general systemic effects are likely ccrotalus be more important than local effects see listing in Comments section. If there will sijus considerable delay before reaching medical aid, measured in several hours to days, then give clear fluids by mouth to prevent dehydration.

The antivenomic results also explain why the antivenoms effectively neutralize the hemorrhagic activity of adult C. 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. It is absent from Panamabut apparently does occur on the Atlantic side of Colombia.