Muntjac or barking deers (Genus: Muntiacus) are small to medium sized animals, which belong to family Cervidae. They occur in forested habitats throughout tropical Asia. Up to now, thirteen species have been documented (Groves ang Grubb, 1990
Amato et al., 1990a
Amato et al., 2000). The Indian muntjacs (Muntiacus vaginalis) are widely distributed from south to south-east Asia. All other muntjacs are more or less restricted to China, Thailand, Myanmar, Cambodia, Laos, Vietnam. Among them, four species are found in Vietnam. In this study, the authors attempt to determine the genetic diversity of this group in Viet Nam using non-invasive sampling and a phylogenetic approach. the preliminary results show that the Indian Muntjac is much more diverse genetically that previously thought. In addition, geographically isolated populations of the Giant Muntjac (M. vuquangensis) is genetically divergent.