| Big free-tailed bat | |
|---|---|
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Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Chiroptera |
| Family: | Molossidae |
| Genus: | Nyctinomops |
| Species: | N. macrotis |
| Binomial name | |
| Nyctinomops macrotis (Gray, 1839) | |
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| Synonyms | |
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The big free-tailed bat (Nyctinomops macrotis) is a bat species found in the Americas.
It was described as a new species in 1839 by British zoologist John Edward Gray. Gray placed it in the now-defunct genus Nyctinomus, with a binomial of Nyctinomus macrotis. The holotype had been collected in Cuba by William Sharp Macleay. [2]
It is the largest member of Nyctinomops , [3] with an average forearm length of 60 mm (2.4 in). [4] Individuals weigh approximately 20.6 g (0.73 oz). It has a wingspan of 417–436 mm (16.4–17.2 in). Its fur is glossy and variable in color, ranging from pale, reddish brown to dark brown or blackish. [4] Its dental formula is 1.1.2.32.1.2.3 for a total of 30 teeth. [3]
Based on its wing morphology, it likely has a rapid flight. Its flight speed could exceed 40 km/h (25 mph). [4]
Its range includes many countries in North, Central, and South America, including: Argentina, Brazil, Canada, Colombia, Cuba, the Dominican Republic, Ecuador, French Guiana, Guyana, Haiti, Jamaica, Mexico, Suriname, the United States, and Venezuela. It is possibly also found in Uruguay. [1] The individuals documented in Canada and the U.S. states of Iowa and Kansas are considered vagrants or extralimital records. However, the species occurs as a non-vagrant in the U.S. states of Texas, California, Nevada, and Utah. [4] It has been documented at a range of elevations from sea level to 2,600 m (8,500 ft) above sea level. [1]
As of 2015, it is evaluated as a least-concern species by the IUCN, which is its lowest conservation priority. [1]
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.
The dwarf dog-faced bat is a species of free-tailed bat from South America. It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Paraguay and Uruguay, typically at lower elevations. It is one of two species in the genus Molossops, the other being the rufous dog-faced bat. Three subspecies are often recognized, though mammalogist Judith Eger considers it monotypic with no subspecies. It is a small free-tailed bat, with a forearm length of 28.9–32.5 mm (1.14–1.28 in) and a weight of 5–8 g (0.18–0.28 oz); males are larger than females. It is brown, with paler belly fur and darker back fur. Its wings are unusual for a free-tailed bat, with exceptionally broad wingtips. Additionally, it has low wing loading, meaning that it has a large wing surface area relative to its body weight. Therefore, it flies more similarly to a vesper bat than to other species in its own family. As it forages at night for its insect prey, including moths, beetles, and others, it uses two kinds of frequency-modulated echolocation calls: one type is to navigate in open areas and to search for prey, while the other type is used for navigating in cluttered areas or while approaching a prey item.
The broad-eared bat or broad-tailed bat is a species of free-tailed bat from the Americas.
The northern freetail bat is a species of bat found in Yapen, Seram Island, Western New Guinea and Northern Australia.
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.
The little goblin bat is a species of bat in the family Molossidae, the free-tailed bats. It is endemic to Cuba.
The big-eared brown bat is a species of vesper bat found in Argentina, Paraguay, and Chile.
The gland-tailed free-tailed bat is a species of bat in the family Molossidae. Its natural habitats are subtropical or tropical moist montane forests, dry savanna, and caves.
The fulvus roundleaf bat or fulvus leaf-nosed bat is a species of bat in the family Hipposideridae. It is found in Afghanistan, Bangladesh, China, India, Myanmar, Pakistan, and Sri Lanka.
The Sulawesi free-tailed bat is a species of bat in the family Molossidae. It is found in Indonesia and the Philippines.
The pocketed free-tailed bat is a species of bat in the family Molossidae found in Mexico and in Arizona, California, New Mexico, and Texas in the United States. They resemble the Brazilian free-tailed bat but differ morphologically. They are recognized as "least concern" by the IUCN and as "apparently secure" by Natureserve.
Blyth's horseshoe bat is a species of bat in the family Rhinolophidae. It is found across southern Asia from Afghanistan to Vietnam. The species can be identified from its pointed, bifid sella.
The big-eared horseshoe bat is a bat species within the Rhinolophidae native to Asia.
The white-striped free-tailed bat is a species of bat in the family Molossidae. Its echolocation calls are audible to humans, which is a characteristic found in only a few microbat species. The species was formerly classified as Tadarida australis.
The African giant free-tailed bat, or African free-tailed bat is a species of bat in the family Molossidae. It is found in Democratic Republic of the Congo, Eritrea, Ethiopia, Kenya, Malawi, Mozambique, South Sudan, Tanzania, Zambia, Zimbabwe, and possibly South Africa. Its natural habitats are dry savanna and subtropical or tropical dry shrubland.
The big-eared flying fox is a species of bat in the family Pteropodidae, larger bats who subsist largely on fruits. The species is distributed across a range in Indonesia, Papua New Guinea and islands nearing the Cape York peninsula at the northeast of Australia, at elevations less than 500 metres and often in coastal mangroves.
The East Asian free-tailed bat was formerly considered to belong to the same species as the European free-tailed bat. Its range includes China, Japan, and the Korean Peninsula.
Thomas's big-eared brown bat is a species of vesper bat found in South America.
