DEATH OF AN ADULT Crotalus cerastes (VIPERIDAE) DUE TO INGESTION OF Dipsosaurus dorsalis (IGUANIDAE)

We report the mortality of a Sidewinder (Crotalus cerastes) by ingestion of a Desert Iguana (Dipsosaurus dorsalis) in Los Algodones, Mexicali, Baja California, Mexico. We found a dead individual of C. cerastes in a habitat composed of dunes, without any apparent physical injury that caused its death; however, we observed a large prey item recently ingested, which we identified as a D. dorsalis. The continual documentation of these cases in snakes helps identify ecological-evolutionary forces in prey size selection.