Class Mammalia Linnaeus, 1758 - mammals Order Chiroptera Blumenbach, 1779 - bats Family Molossidae Gervais, 1856 - free-tailed bats and mastiff bats Genus Nyctinomops Miller, 1902 - New World free-tailed bats Nyctinomops macrotis (Gray, 1840) - big free-tailed bat