Major's Long-fingered Bat is endemic to Madagascar. It has gray-brown fur and long fingers, and changes the length and bandwidth of its echolocation calls with the space in which it flies.
Its fur is grayish-brown and slightly paler underneath. The ears are moderately large and nearly square, with a prominent kidney-shaped projection inside each ear.
It uses echolocation to sense its surroundings. In cluttered places its calls become shorter and broader, while in open places they become longer and narrower.
When hanging by its hind feet, it folds the elongated end of the third finger back over the wing.
The tail is enclosed within the membrane between the hind legs.
An extinction-risk assessment has not been added yet.