Procolobus pennantii Waterhouse, 1838 . Proc. Zool. Soc. Lond., 1838:57.

TYPE LOCALITY: Equatorial Guinea, Bioko .

DISTRIBUTION: Congo Republic; Bioko (Equatorial Guinea); Zaire; W Uganda; W and SE Tanzania; Zanzibar (Tanzania).

STATUS: CITES - Appendix I as C. p. kirki, otherwise Appendix II; U.S. ESA - Endangered as C. kirki; IUCN - Vulnerable as subspecies tephrosceles, Insufficiently known as subspecies ellioti, foae, oustaleti and tholloni, otherwise Endangered.

SYNONYMS: anzeliusi, bouvieri, brunneus, ellioti, foai, gordonorum, graueri, gudoviusi, kabambarei, kirki, langi, lulidicus, lovizettii, melanochir, multicolor, nigrimanus, oustaleti, parmentieri, powelli, schubotzi, tephrosceles, tholloni, umbrinus, variabilis .

COMMENTS: Subgenus Piliocolobus; includes bouvieri, kirki, and tholloni; but also see Rahm (1970) who considered this species a subspecies of badius, and Dandelot (1974:35), who considered kirki and tholloni distinct species.