Geography of Africa in the lake of organisms of a decidedly marine type. They include jellyfish, molluscs, prawns, crabs, etc. With the exception of Madagascar, the African islands are small. Madagascar, with an area of , is, after Greenland, New Guinea and Borneo, the fourth largest island on the Earth. It lies in the Indian Ocean, off the S.E. coast of the continent, from which it is separated by the deep Mozambique channel, wide at its narrowest point. Madagascar in its general structure, as in flora and fauna, forms a connecting link between Africa and southern Asia. East of Madagascar are the small
Fauna of New Guinea areas. The common Asiatic toad was accidentally introduced, and is very abundant in a small area in the north-west, and may be spreading further throughout the island. Frogs from the family Myobatrachidae are highly diverse and widespread in Australia. However, only seven described species have established in New Guinea. In Australia, the largest diversiy is seen in the subtropical and semi-arid environments, with the greatest diversity in the tropics occurring in savannah. New Guinea, however, is mostly covered in dense rainforest. The most common myobatrachid in New Guinea is the wokan cannibal frog ("Lechriodus melanopyga"). It is a small ground-dwelling