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Where were matrilineal descent systems common in Melanesia?
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In Melanesia, matrilineal descent systems are primarily utilized in much of the Massim region, the Bismarck Archipelago, and the Solomon Islands.1
While these systems are common in those areas, it is important to note that there is considerable variation within these regions. In these matrilineally organized societies, ties to a father's relatives are also expressed and recognized, often playing a complementary role in social and ritual life.1