MUNTJAC, or MUNTJACK, Cervulus, a genus of deer, indigenous in the S. and E. parts of Asia and the adjacent islands. They are diminutive animals, with small and simple antlers in the males, which have the upper canines strongly developed and sharp, curving downward, and capable of inflicting deep and dangerous wounds. Four species are known: C. muntjac, C. lacrymans, C. reevesi, and C. crinifrons, the hairy-fronted muntjac.