Proboscis bat | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Chiroptera |
Family: | Emballonuridae |
Genus: | Rhynchonycteris Peters, 1867 |
Species: | R. naso |
Binomial name | |
Rhynchonycteris naso (Wied-Neuwied, 1820) | |
Proboscis bat range | |
Synonyms | |
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The proboscis bat (Rhynchonycteris naso) is a species of bat found in South America and Central America. Other common names include long-nosed proboscis bat, sharp-nosed bat, [2] Brazilian long-nosed bat. [3] and river bat. [4] It is the only species in the genus Rhynchonycteris.
This species is in the family Emballonuridae, the sac-winged or sheath-tailed bats. Like most bats, it is nocturnal. It is found from southern Mexico to Belize, Peru, Venezuela, Bolivia and Brazil, as well as in Trinidad. [1] [5] [6]
This is a small bat, around 6 centimetres (2.4 inches) long and 4 grams (0.14 ounces) in weight. Males in northern South America were found to average 56 millimetres (2.2 in) long, females 59 millimetres (2.3 in). [3] The tail is about 16 millimetres (0.63 in) long. [3] Pregnant females can weigh up to 6 grams (0.21 oz). [3]
This species is found in the lowlands of the northern half of South America, throughout Central America, and into southeastern Mexico. From Ecuador south, it is limited to east of the Andes; its range extends south to the northern half of Bolivia and much of Brazil. It seldom occurs above 300 meters (980 feet) in elevation. [3] It usually lives around wetlands and is frequently found in riparian forests, pastures swamps, and all near water.
Proboscis bats live in groups. The colonies are usually between five and ten individuals, and very rarely exceed forty. The bats are nocturnal, sleeping during the day in an unusual formation: most of them line up, one after another, on a branch or wooden beam, nose to tail, in a straight row.
A colony of proboscis bats usually has a regular feeding area, typically a small patch of water. Here the bats catch insects (in the form of midges [including chironomids], mosquitoes, beetles, and caddisflies) [7] [8] using echolocation. They have no specific breeding season, forming stable year-round harems. One young is born per female. Both sexes disperse after weaning at around 2–4 months.
This small species of bat has been found to occasionally fall prey to the large spider Argiope savignyi . [6]
The genus Argiope includes rather large spiders that often have a strikingly coloured abdomen. These spiders are distributed throughout the world. Most countries in tropical or temperate climates host one or more species that are similar in appearance. The etymology of Argiope is from a Latin word argentum meaning silver. The carapace of Argiope species is typically covered in silvery hairs, and when crawling in the sun, they reflect it in a way that gives them a metallic, white appearance.
Emballonuridae is a family of microbats, many of which are referred to as sac-winged or sheath-tailed bats. They are widely distributed in tropical and subtropical regions around the world. The earliest fossil records are from the Eocene.
The hairy-legged vampire bat is one of three extant species of vampire bats. It mainly feeds on the blood of wild birds, but can also feed both on domestic birds and humans. This vampire bat lives mainly in tropical and subtropical forestlands of South America, Central America, and southern Mexico. It is the sole member of the genus Diphylla.
The big-eared woolly bat or (Peters's) woolly false vampire bat is a species of bat, belonging to the family Phyllostomidae.
Peters's disk-winged bat is a bat species mainly found in South and Central America. It belongs to the family Thyropteridae, a small group of disk-winged bats. They have a distinguishing feature of circular, suction disks at the base of their thumbs and hind feet. They use these suction disks to cling onto young unfurling banana or heliconia leaves to roost while avoiding rain and predators. They are very similar in appearance and easily confused with Thyroptera tricolor which has a paler venter than dorsum, and two cartilaginous projections on the calcar.
The short-eared bat is a bat species found in Brazil, Costa Rica, Guyana and Nicaragua. It is the only species within its genus.
The northern ghost bat is a bat species from South America, Trinidad, and Central America. It is a relatively rare, completely white, insectivorous bat, with an unusual sac at the base of its tail.
The lesser sac-winged bat or lesser white-lined bat is a bat species of the family Emballonuridae from South and Middle America.
The lesser long-tongued bat, also called the lesser long-tailed bat, is a bat species from South America.
The pygmy fruit-eating bat is a bat of the family Phyllostomidae. The specific name phaeotis is of Greek derivation, coming from the word phaios meaning dusky, referring to their dusky gray coloration.
The little big-eared bat is a bat species in the order Chiroptera and family Phyllostomidae. It is from South and Central America particularly Colombia, Venezuela, Guyana, French Guiana, Brazil, Peru, Ecuador, Bolivia, Argentina, Paraguay, Suriname and Trinidad. Though its exact population is unknown, it is considered widespread and occurs in protected areas, although deforestation may be a minor threat, it is classified as Least Concern. It is found in multistratal evergreen forests and dry thorn forests and forages near streams and is found hollow trees, logs, caverns, or houses with groups up to twelve. The head and body length measures at 44 millimetres (1.7 in) for males and 45 millimetres (1.8 in) for females. Males usually weigh about 5 grams (0.18 oz) while females weigh 5.7 grams (0.20 oz).
The pale spear-nosed bat is a species of phyllostomid bat from South and Central America.
The dwarf little fruit bat is a species of leaf-nosed bat from South America.
The visored bat,, is a bat species from tropical South America. It is the only species in the genus Sphaeronycteris. Although visored bats have some unique characteristics, they are thought to be most closely related to little white-shouldered bats and wrinkle-faced bats.
The gray sac-winged bat is a species in the family Emballonuridae which comprises the 51 species of sac-winged bats. It is found in Mexico from Baja California Sur and Sonora to Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica and northern Colombia, at elevations up to 1,500 metres (4,900 ft).
The African sheath-tailed bat is a species of sac-winged bat in the family Emballonuridae.
The yellow-bellied sheath-tailed bat, also known as the yellow-bellied sheathtail or yellow-bellied pouched bat, is a microbat species of the family Emballonuridae found extensively in Australia and less commonly in parts of Papua New Guinea.
The flat-faced fruit-eating bat is a South American species of bat in the family Phyllostomidae. It is sometimes considered a subspecies of the Jamaican fruit bat, but can be distinguished by its larger size, the presence of faint stripes on the face, and of a third molar tooth on each side of the upper jaw. Genetic analysis has also shown that the two species may not be closely related.
The Cuban flower bat, also called Poey's flower bat, is a species of bat in the family Phyllostomidae. It is found on the Caribbean islands of Cuba and Hispaniola.
Argiope submaronica is a species of spider in the family Araneidae (orb-weavers), found from Mexico to Bolivia, and in Brazil. The name was at one time considered a synonym of Argiope argentata, but A. submaronica is now treated as a separate species. It has also been known under the synonym Argiope savignyi.