Ras Vasfiia (Ras Mkita on Fumba peninsula?)
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The only author to mention this island is Ibn Majid (1470).
Taken from: UNGUJA UKUU ON ZANZIBAR by Abdurahman Juma
Due south-west of Unguja Ukuu on Zanzibar Island is the Fumba peninsula with a shore containing pot-sherds of blue-green glazed ware and could have reached there during the period of primary occupation at Unguja Ukuu and that might be usefully explored in the future.