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Field Guide to Amazonian Bats

Emballonuridae (Sac-winged bats)

The Emballonuridae is a pantropical family that in the New World is found from northern Mexico to southern Brazil. Some Neotropical species of this family possess sac-shaped glands near their shoulders, which explains the origin of the family’s common name (sac-winged bats). These glands are usually more prominent in males and are used to produce pheromones. Emballonurids are small aerial insectivorous bats, with relatively large eyes and long, narrow wings. These wings are so long that at rest they have one more fold than other bats. Most species are brown, but the four Diclidurus species, known as ghost bats, can vary from pale brownish to white and have distinctive pink wings, ears, and face. Most members of the genus Saccopteryx have two thin dorsal stripes that are especially evident in the greater sac-winged bat S. bilineata. Some, like the water-associated proboscis bat Rhynchonycteris naso, take advantage of their pale grey and yellowish fur to camouflage themselves on lichen-covered branches and wooden beams, and roost in a curious straight-lined, nose-to-tail formation. 86

Saccopteryx leptura

Field Guide to Amazonian Bats  

Do you think identifying bats in Europe or in North America is difficult? Well, try it in the Amazon The planet’s green lung is home to the...

Field Guide to Amazonian Bats  

Do you think identifying bats in Europe or in North America is difficult? Well, try it in the Amazon The planet’s green lung is home to the...

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