| cercocebus | <zoology> A genus of the subfamily cercopithecinae inhabiting the african forests. They are also known as mangabeys. (12 Dec 1998) |
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| cercocebus atys | <zoology> A species of old world monkeys from the genera cercocebus that is important in aids research. They may be naturally or experimentally infected with the simian immunodeficiency virus. They inhabit african forests from sierra leone to the congo republic. (12 Dec 1998) |