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Natalidae (long-legged bats; order Chiroptera, suborder Microchiroptera) A family of very agile, insectivorous bats in which the large uropatagium is supported by very long legs, calcars, and the tail which extends to its margin. The nose is simple, without a leaf, but has lateral tufts of hair. The ears are simple, separate, and very large. The bats are distributed throughout tropical N. and Central America and the W. Indies, and in tropical S. America east of the Andes. There is one genus, Natalus, with about eight species.