Hemolytic and proteolytic activities of Crotalus adamanteus venoms. All venoms possessed hemolytic activity, but these activities were not significantly different. Venoms differed in their gelatinase activity; the SAP and ENP populations were the only venoms to test positive for gelatinase activity at the lower dose, and all venoms except for the juvenile venom exhibited gelatinase activity at the higher dose. Hemolytic activity was measured in millimeters; the mean value and the standard deviation are listed. Gelatinase activity is indicated as present (+) or absent (−); each concentration was tested in duplicate.