OCEANIA, a geographical area extending from Australia, in the west, to the most easterly islands of Polynesia, in the east, and from New Zealand, in the south, to Micronesia and the Sand wich islands, in the north. Ethnologically the area is divisible into six principal regions (q.v.) : Australia; Tasmania; Melanesia, a group of islands extending from Fiji, in the south-east, to New Guinea, in the west; New Guinea, which, however, is a geographi cal rather than an ethnological unit, for the eastern and north eastern coastal regions are Melanesian, while the west really falls under Indonesia ; Polynesia, an island area of considerable racial and cultural uniformity, comprising the greater part of the Pacific ; Micronesia, an island area comprising that part of the Pacific which lies between New Guinea, Polynesia and the Philippines.
for example, will readily separate Australia, and in all probabil ity Tasmania, from the group Melanesia, Polynesia and Micro nesia. The speech of these three areas, together with the Melan esian and Indonesian part of New Guinea, is clearly referable to one family, the Austronesian (q.v.), extending from part of India and Burma, through Malaya and Indonesia to the extrem ities of Polynesia. But while the Polynesian languages may be described as dialects of one language, there is considerably more diversity within the Melanesian sub-division of this family.
This Austronesian speech is associated with a distinctly higher culture, particularly in Polynesia and Micronesia, the Melanesians being in some respects intermediate between these groups and the Papuans of New Guinea, though among Papuan's there is great variety of culture, the result, no doubt, of various degrees of blending of immigrant cultures with perhaps more than one indig enous culture brought into New Guinea and Melanesia by the original Papuans.
The Australians, culturally as well as physically, betray a marked contrast, not only with the Austronesian-speaking peoples of Oceania, but also with the Papuans of New Guinea. Horticul ture, well-developed throughout the rest of the area, excepting Tasmania, is entirely absent, and the economic life is, conse quently, of a very low order. Nevertheless, an elaborate social organization and ceremonial life and considerable variation in such stable aspects of culture as the disposal of the dead, survive in Australia.