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Sheath-tailed Bat or Sac-Winged Bat

Balantiopteryx io


Sheath-tailed bats hanging from the ceiling of an ancient Mayan pyramid. family Emballonuridae.


Lacandon Rainforest.

2 species ID suggestions

Mexican Free-tailed Bat
Tadarida brasiliensis
Sheath-tailed Bat or Sac-Winged Bat, Family Emballonuridae
Balantiopteryx io North American Mammals: Balantiopteryxio


LuisStevens 4 years ago

Thank you Lauren Zarate for the ID and link.

LaurenZarate 4 years ago

Our little Bat is Balantiopteryx io, an insectivore. Yours is not in the usual position of balancing itself on it's fore arms….The left bat in the 3rd picture and all the bats in the 4th picture are in the classic triangular position. They also do not like to be bunched together like the Leaf-nosed bats in your other spotting.

LuisStevens 4 years ago

Thank you jbstrange2202 for the ID.

Sergio Monteiro
Sergio Monteiro 4 years ago

Brasiliensis? There is that Mexico-Brasil link again... :-)

LuisStevens 4 years ago

Yes AfriBats, I saw the two kinds of bats in the same temple that Lauren saw hers. Thanks for the help.

AfriBats 4 years ago

That's a sheath-tailed bat (family Emballonuridae). Spotted in the same temple as this one?

Chiapas, Mexico

Lat: 16.90, Long: -90.96

Spotted on Dec 10, 2013
Submitted on Apr 7, 2014


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