Genus Hipposideros, commonly known as the Old World leaf-nosed bats, features over 100 known species of microbats. These bats are mainly located across Africa, Asia, and Australasia. They are named after their distinctive leaf-like nose structure used for echolocation to navigate in low-light conditions. This genus includes several species such as H. armiger, H. ater, H. cineraceus, H. doriae, and H. larvatus. Other synonyms that refer to this genus include Hipposidera, Coeloprosopus, and Coelops. The species are classified according to their size, geographic location, morphology, and molecular evidence. H. bicolor, for example, is one of the smallest species in the genus, while H. diadema tends to be larger.