The length of the different Phelsuma species varies between about 6.5 to 30 cm (2.5-12 in.). Day geckos have toe pads consisting of tiny lamellae which allow them to walk on plain surfaces like bamboo or glass. The inner toe and thumb are vestigial. Males have well developed femoral pores on the undersurface of the rear limbs. These pores are less developed or absent in females. Females often have well developed endolymphatic chalk sacs on the sides of their neck. In these sacks, calcium is stored which is needed for egg production. Those eggs can often been seen shining through the ventral surface of the body shortly before they are laid. The hatchlings reach sexual maturity between 6-12 months. Smaller species may live up to ten years whereas the larger species have been reported to live more than 20 years in captivity.


