Bikol, Central

Bicol region: west Albay province, Legapi area; Camarines Norte province, Philippine Sea from east coast marshes to Mandao, San Miguel bay; Camarines Sur province, San Miguel bay area, Ragay gulf, Caramoan peninsula to Lagonay gulf; southwest third of Catanduanes province; Masbate province, Burias and Ticao islands; north Sorsogon province, Sorsogon bay mouth, inland; CALABARZON region: east tip of Quezon province.