Vampire Bat
a name formerly given to Vampyrus spectrum. Also any species of the group Desmodontes, contwo genera, each represented by a single species. They differ from all other bats in the character of dentition, the upper incisors being very large, trenchant, and occupying the whole space between the canines; premolars very narrow, with sharp-edged longitudinal crowns; molars rudimentary or none; œsophagus very narrow; cardiac extremity of stomach greatly elongated, forming a long, narrow cæcum. species are sanguivorous, and cling by their extremities to the body of the animal whose blood they may be sucking. The