All modern classifications of Ekoid are based on Crabb (1969) and when Watters (1981) came to explore the proto-phonology of Ekoid, he used this source, rather than his own field material from the Ejagham dialects in Cameroon. A problematic aspect of Crabb is his notation of Ekoid which does not clearly distinguish phonetic from phonemic transcription. Fresh work on Ejagham by Watters (1980, 1981) has extended our knowledge of the Cameroonian dialects of Ekoid. However, an important unpublished dissertation by Asinya (1987) based in fresh fieldwork in Nigeria made an important claim about Ekoid phonology, namely that most Ekoid languages have long/short distinctions in the vowels. Ekoid has raised particular interest among Bantuists because it has a noun-class system that seems close to Bantu and yet it cannot be said to correspond exactly (Watters 1980).