Macacus
CIDE DICTIONARY
Macacus,
n. [NL., a word of African origin. Cf.
Macaco,
Macaque.].
A genus of monkeys, found in Asia and the East Indies, now usually called
Macaca. They have short tails and prominent eyebrows. See also
Macaca. [
1913 Webster]
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Macacus" in Webster Dictionary Online