The Brazilian funnel-eared bat (''Natalus macrourus'') is a

bat Bats are mammals of the order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most bi ...

species found in eastern

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

and in Paraguay. It roosts in caves, which makes it vulnerable to disturbance of these scarce sites, and in particular, to extermination campaigns against cave-roosting bats carried out in Brazil to combat

rabies Rabies is a viral disease that causes encephalitis in humans and other mammals. Early symptoms can include fever and tingling at the site of exposure. These symptoms are followed by one or more of the following symptoms: nausea, vomiting, vi ...

. It was formerly considered a subspecies of '' N. stramineus''. Abiotic factors such as temperature and annual rainfall can affect the distribution of this species. Physical characteristics include short maxillary toothrow length, deeply concave and deeply notched auricular pinna, small oval nostrils open ventrolaterally, unicolored abdominal fur, bicolored fur with lighter bases on the back and sides.

References

Libro Rojo de Mamíferos de Paraguay
Natalus Bats of Brazil Endemic fauna of Brazil Fauna of the Atlantic Forest Environment of Pará Environment of Rio Grande do Norte Environment of São Paulo (state) Near threatened animals Near threatened biota of South America Mammals described in 1856 Taxa named by Paul Gervais Taxobox binomials not recognized by IUCN {{Bat-stub