The Red Diamond Rattlesnake is a large species of Rattlesnake. It usually grows up to the length of 100 centimeters (39 in), but some males can grow up to the length of 140 centimeters (55 in). The largest ever found was 162 centimeters (64 in) long. Its pattern is similar to the "Western Diamondback Rattlesnake", but the Red Diamond Rattlesnake has more of a reddish color on it. 