Slavery and African ethnicities in the Americas : restoring the links Gold God race and slaves Making invisible Africans visible : coasts ports regions and ethnicities The clustering of African ethnicities in America Greater Senegambia Upper Guinea Lower Guinea : Ivory Coast Gold Coast and Slave Coast Lower Guinea : the bight of Biafra Bantulands : west central Africa and Mozambique Conclusion : implications for culture formation in the Americas Appendix : prices of slaves by ethnicity and gender in Louisiana.