The bat genus Mormopterus is one of 17 genera in the family Molossidae (free-tailed bats).The genus now comprises 18 extant species in four subgenera. The subgenus Mormopterus has seven species occurring in geographically disparate locations: three species from the west Indian Ocean region (Madagascar and the Mascarene Islands and possibly South Africa and Ethiopia), one species from western Indonesia (known from a single specimen from Sumatra) that appears to be related to the above three species; and three species from the neotropics (the western side of South America as far south as northern Chile, and Cuba). The subgenus Ozimops occurs in Indonesia (Halmahera, Ambon, Seram and West Papua), Papua New Guinea and Australia, and the two monotypic subgenera Micronomus and Setirostris are Au