Pallas's mastiff bat (Molussus molussus tropidorhynchus)
This species is native to Cuba and could have dispersed here naturally, but was probably introduced in 1929 as part of mosquito control plan at the Perky Bat Tower on Sugarloaf Key. Presently, these bats have only been found in areas near the alleged release site. Although these bats roost in buildings, they range over a variety of habitats when feeding. Colonies most recently found on Vaca Key, Stock Island, and Boca Chica Key.