Draco mindanensis of this species' patagium, or the extensible fold of skin used in flight, is red in males and dusky in females. Also, "D. mindanensis" can be distinguished from other species of "Draco" in the Philippines by its larger size (maximum length has been recorded at 105 mm), mode of five ribs supporting its patagium, upward directed nostril, lack of Y-shaped series of scales on forehead, presence of lacrimal bone and dorsal body coloration of pale brown with a slight greenish case in males. In males of this species, the dewlap, or the inflatable loose skin under the throat, is large,
Gular skin lizard also have a gular fold and consequently, gular scales. The theropod dinosaur Pelecanimimus, which lived in the early Cretaceous Period 130 million years ago, also had a gular pouch, similar to the pelican after which it is named. The conus snail has a throat sac. Gular skin Gular skin (throat skin), in ornithology, is an area of featherless skin on birds that joins the lower mandible of the beak (or "bill") to the bird's neck. Other vertebrate taxa may have a comparable anatomical structure that is referred to as either a gular sac, throat sac, vocal sac or gular