Crotalus envenomation

Mojave rattlesnake (Crotalus scutulatus) bites deserve special consideration and caution, because neurologic signs and symptoms of envenomation may be delayed and there is often little swelling or evidence of tissue damage. The onset of muscle weakness, ptosis, and respiratory arrest may occur several hours after envenomation. Facial and laryngeal edema have also been reported. 

Chiszar, D, Walters, A, Urbaniak, J., Smith, H. M., and Mackessy, S. P., 1999b, Discrimination between envenomated and nonenvenomated prey by Western diamondback rattlesnakes (Crotalus atrox). Chemosensory consequences of venom, Copeia 1999 640-648. 

Distance traveled by mice (Mus muscuius) after envenomation by prairie rattlesnakes (Crotalus viridis), Bull. Psychon. Sci., 18 108. 

Hayes, W. R., and Galusha, J. C., 1984, Effects of rattlesnake (Crotalus viridis oreganus) envenomation upon mobility of male wild and laboratory mice (Mus musculus), Bull. MD Herpetol. Soc., 20 135. 

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