Timber (Canebreak) Rattlesnake 

 

 
35"-75" long, yellow through black with dark back and side blotches on the front of the body and crossbands near the rear of the body.  Populations in this area typically are more yellowishwith a tan or reddish brown backstripe dividing chevronlike crossbands, with a dark stripe behind the eye.  Tail is black.