hamadryas

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ham·a·dry·as

H0034100 (hăm′ə-drī′əs)n. A baboon (Papio hamadryas) of northern Africa and Arabia, the adult male of which has a heavy mane. Also called sacred baboon.
[Latin, hamadryad; see hamadryad.]

hamadryas

(ˌhæməˈdraɪəs) n (Animals) a baboon, Papio (or Comopithecus) hamadryas, of Arabia and NE Africa, having long silvery hair on the head, neck, and chest: regarded as sacred by the ancient Egyptians: family Cercopithecidae. Also called: hamadryas baboon or sacred baboon [C19: via New Latin from Latin; see hamadryad]