Sira languages
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The Sira languages are a clade of Bantu languages coded Zone B.40 in Guthrie's classification. According to Nurse & Philippson (2003), together with a couple languages from H10, they form a valid node. They are:
(B.40) Punu, Bwisi, Varama, Vungu, Shira–Bwali, Sangu, Lumbu, (H.10) Vili, Kunyi.
Maho (2009) adds Ngubi.
In addition, the unclassified Pygmy language Rimba (Irimba) is generally assumed to be a dialect of Punu.