Bufonidae - True toads are widespread and occur natively on every continent except Australia and Antarctica, inhabiting a variety of environments, from arid areas to rainforest.
Bombinatoridae - Bombinatoridae are often referred to as Fire-bellied toads because of their brightly colored ventral sides, which show that they are highly toxic to humans.
Megophryidae - Megophryidae are a large family of frogs native to the warm southeast of Asia, from the Himalaya foothills eastwards, south to Indonesia and the Greater Sunda Islands in Maritime Southeast Asia, and extending to the Philippines.
Brachycephalidae - The saddleback toads are the family Brachycephalidae in the order Anura.
Sooglossidae - All of the species are relatively small terrestrial frogs, about 4 centimeters in length, hiding under fallen leaves or in rock crevices.