About Calumma crypticum Raxworthy & Nussbaum, 2006
Calumma crypticum grows to a length of about 12 cm (5 in). It has large, flap-like lobes at the back of the head. This species is sexually dimorphic: males have a longer snout with a horn-like protrusion on its upper surface, which females do not have. Like other chameleon species, its body colour is variable, changing based on the colour of its surroundings, ambient temperature, and variations in light level. This species is usually quite colourful, with rich shades of brown, blue, and green, and its legs are often marked with blue. Calumma crypticum is endemic to eastern Madagascar. It is a mid-altitude species that occurs between 1,050 and 1,850 m (3,445 and 6,070 ft) above sea level. Its range extends from the Tsaratanana Massif to the Ivakoany Massif. It is an arboreal species that lives in humid forests. Its distribution is patchy due to forest clearance in the central highlands between the mountain blocks, and there is a subpopulation around Ambohitantely in the central west of Madagascar.
