Closely related to C. arquatrix, C. thomensis and C. pollenii, and all four are sometimes considered conspecific; Asiatic C. hodgsonii may also belong within this group. Monotypic.
Obudu and Mambilla Plateaux in E Nigeria, and Cameroon highlands from Mt Cameroon NE to Mt Oku (Kilum); also Bioko.
Food and feeding
Status and conservation
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