Eastern Diamondback
"Description: The eastern diamondback rattlesnake is the largest of the 32 species of rattlesnake currently recognized. They are large, heavy-bodied snakes with large, broad heads with two light lines on the face. Adults are usually 33-72 in (84-183 cm) long, but the largest individual on record was 96 in (244 cm). Mature snakes can tip the scales at over 10 lbs. The background color is brown, tan, or yellowish and covered with the namesake diamonds, which are brown and surrounded by lighter scales. Males are larger than females"