E16/E17/E18/E19/E20/E21/E22/E23/E24/E25/E26/E27 has a separate entry for Mayeka [myc], a Bantu language of the Democratic Republic of the Congo. It is very likely to be the same as Ngbinda [nbd] since de Calonne-Beaufaict, Adolphe 1921: 14 , 247, 251 calls Mayeka a clan of Abangbinda, though no actual linguistic data is presented. The information on Mayeka [myc] in E16/E17/E18/E19/E20/E21/E22/E23/E24/E25/E26/E27 presumably derives from Hackett, Peter and van Bulck, Gaston [Vaast] 1956 who took down a Mayeka wordlist but were not able to find out the location of Mayeka, and did not have access to a Ngbinda wordlist ( van Bulck, Gaston 1954: 74-75 ) to check if Mayeka and Ngbinda were the same. Though, at the present time, if Hackett and van Bulck's unpublished Mayeka wordlist still exists in an archive somewhere, it should be checked whether the data is actually Ngbinda or a different, but related, language. See also: Ngbinda-Mayeka [nbd].