Sabi languages
The Sabi languages are a group of Bantu languages established by Christine Ahmed. They constitute much of Guthrie's Zone M, plus Senga. The languages, or clusters, along with their Guthrie identifications, are:
Bwile may belong here as well, as it is part of Guthrie's M40 group and Nurse does not note it as an exception, but it is not close to other languages and was not addressed by Ahmed.
Nurse suspects that the Botatwe languages may be related.