The Molossidae, or free-tailed bats, are a family of bats within the order Chiroptera. The Molossidae is the fourth-largest family of bats, containing about 110 species as of 2012. They are generally quite robust, and consist of many strong-flying forms with relatively long and narrow wings with wrinkled lips shared through their genus. Their strong flying form allows them to fly 60 miles per hour using tail winds and at altitudes over 10,000 feet. This makes them unique among bats, as they are the only bat family that withstands the elevation. They are widespread, being found on every continent except Antarctica. They are typically found in caves, abandoned mines, or tunnels.
Mormopterus is a genus of molossid microchiropterans, small flying mammals referred to as free-tailed bats. The genus has been the subject of several revisions, and the diversity of taxa centred on Australia were separated to a new genus Ozimops, and two monotypic genera, Setirostris and Micronomus. The species of Mormopterus, in this stricter sense, are only found in areas outside of Australia and West Papua.
The genus Tadarida has 9 or more species of free-tailed bats divided into two subgenera, with the first of these containing seven species spread across the Old World. Four species occur exclusively in Africa including Madagascar while two more species occur in central Papua New Guinea, and western and southern Australia, respectively.
The name mastiff bat is applied to certain species of the bat family Molossidae or so called free-tailed bats. It is usually applied specifically to the following genera:
The Natal free-tailed bat is a species of bat in the family Molossidae, the free-tailed bats. It is endemic to the island of Mauritius. It is known from fewer than five locations in its range, but it is common at a few sites. It roosts in caves, and it is considered to be an endangered species due to disturbance of its cave habitat.
Peters's wrinkle-lipped bat, also called Peters's goblin bat, is a species of bat in the family Molossidae, the free-tailed bats. It is endemic to Madagascar, where it is widespread and in some areas abundant. It commonly roosts in human-made structures, sometimes in colonies with other free-tailed bat species. It forages in the open, often in agricultural areas. The bat is sexually dimorphic, with males larger than females.
Kalinowski's mastiff bat is a species of bat in the family Molossidae, the free-tailed bats. It is native to Peru and northern Chile. Relatively little is known about the species, but it is thought to be common in its range. It is sometimes seen in urban areas. Molecular sequencing data indicates that the closest relatives of M. kalinowski are members of another genus, Nyctinomops.
Grandidier's free-tailed bat is a species of bat in the family Molossidae. It is endemic to Madagascar. Its natural habitats are subtropical or tropical dry forests and dry savanna. It has at times been considered synonymous with the little free-tailed bat.
The little free-tailed bat is a species of the genus Chaerephon in the family Molossidae. It is widely distributed across Africa and islands around the continent.
The Solomons mastiff bat is a species of bat in the family Molossidae. It is endemic to the Solomon Islands.
The São Tomé free-tailed bat is a species of bat in the family Molossidae. It is endemic to São Tomé and Príncipe. Its natural habitats are dry savanna, moist savanna, and plantations. It is threatened by habitat loss. Only three individuals have ever been documented.
The Mongalla free-tailed bat is a species of bat in the family Molossidae. It is found in Burkina Faso, Cameroon, Democratic Republic of the Congo, Ivory Coast, Ghana, Kenya, Mali, Sudan, and Uganda. Its natural habitats are dry savanna, moist savanna, and subtropical or tropical seasonally wet or flooded lowland grassland.
The Midas free-tailed bat is a species of bat scientifically classified in the order Chiroptera and the family Molossidae. It is distributed from western Africa to Saudi Arabia and further south. Its natural habitats are dry savanna, moist savanna, woodlands and hot deserts. The more southern are also known to live around large rivers or the swamps.
Otomops is a genus of bat in the family Molossidae. Molecular sequence data supports it as a monophyletic taxon, although not a number of other molossid genera.
The Egyptian free-tailed bat, also known as Egyptian guano bat or Egyptian nyctinome, is a species of bat in the family Molossidae.
Mops is a genus of bats in the family Molossidae. Molecular sequence data indicates that Mops and Chaerephon are not monophyletic taxa. However, the grouping of Chaerephon and Mops was found to be monophyletic when excluding C. jobimena.
Chaerephon jobimena, commonly known as the black and red free-tailed bat, is a species of bat in the family Molossidae. It is endemic to western Madagascar. With a forearm length of 45 to 48 mm, C. jobimena is somewhat larger than other Malagasy bats assigned to Chaerephon, but similar in size to Tadarida aegyptiaca.
Chaerephon atsinanana is a free-tailed bat found on Madagascar. It was considered a subspecies of the little free-tailed bat until 2010. During the day, they are known to roost in man-made structures such as the roofs or attics of buildings.
