Jacchus
Pronunciation : Jac"chus
Part of Speech : n.
Etymology : [NL., fr. L. Jacchus a mystic name of Bacchus, Gr. (Zo?l.)
Definition : Defn: The common marmoset (Hapale vulgaris). Formerly, the name was also applied to other species of the same genus.
Source : Webster's Unabridged Dictionary, 1913