Crotalus simus

Yucatán rattlesnake (Crotalus simus tzabcan) Adults commonly exceed 130 cm (51 in) in length, with males growing larger than females. Large males reach 140-160 cm (55-63 in) in some populations. The maximum length is 180 cm (71 in)To the Mayans and their living descendants was greatly revered. The word tzabcan means rattlesnake in Mayan.