Parson's chameleon

The egg of the rare Parson's chameleon can take up to two years to hatch.

The Parson's chameleon (Calumma parsonii) is a large species of chameleon, a lizard in the family Chamaeleonidae. The species is endemic to isolated pockets of humid primary forest in eastern and northern Madagascar. It is listed on CITES Appendix II, meaning that trade in this species is regulated. While most chameleon species from Madagascar cannot be legally exported, a limited number of Parson's chameleon can be legally exported each year from its native country. == Etymology == The specific name, parsonii, is in honor of British physician James Parsons. == Description == Among the largest chameleons in the world (usually considered the largest by weight, but shorter than the Malagasy giant chameleon which holds the title for the largest by length), C. parsonii males have ridges running from above the eyes to the nose, forming two warty horns. There are two recognized subspecies: The widespread Calumma p. parsonii reaches up to 68 cm (27 in) in total length (including tail), about the size of a cat, and has no dorsal crest. Calumma p. cristifer, from near Andasibe, reaches 47 cm (18+1⁄2 in), and has a small dorsal crest.