Kitti's Hog-Nosed Bat: Craseonycteridae

The only species in the Craseonycteridae family is Kitti's hog-nosed bat or simply, hog-nosed bat. They are also called bumblebee bats, because they are about the size of a bumblebee. This species was unidentified until 1974.

Kitti's hog-nosed bat is considered the word's smallest mammal. The head and body combined measure only 1.1 to 1.3 inches (29 to 34 millimeters), and they weigh about 0.7 to 0.9 ounces (2.0 to 2.6 grams), which is about the weight of a dime. These bats have a wingspan of about 6 inches (15 centimeters), which is smaller than some butterflies.

The name hog-nosed refers to the bat's facial appearance. Their muzzle is pig-like, with two wide, crescent-shaped nostrils. Their ears are relatively large with rounded tips. They extend beyond the snout when the bat is lying forward. Their eyes are relatively small and partially hidden by fur. Hog-nosed bats have long and broad wings with pointed tips. Fur on the back may be a brown to reddish brown and its belly is typically paler. These bats have twenty-eight teeth.

Kitti's hog-nosed bats have long, slender feet and a short thumb with a well-developed claw. They do not have an external tail. Males have a glandular swelling at the base of the throat. The bumblebee bat also has a web of skin between its hind legs, which is thought to help with flying and catching insects.