Pluto

Plu"to (?), n. [L., fr. Gr. ?.] (Class. Myth.) The son of Saturn and Rhea, brother of Jupiter and Neptune; the dark and gloomy god of the Lower World.

Pluto monkey (Zoöl.), a long- tailed African monkey (Cercopithecus pluto), having side whiskers. The general color is black, more or less grizzled; the frontal band is white.