Key: Step 2. Tails

RL2
Tail absent (although interfemoral membrane may be present) or tail short but not enclosed in membrane.

Step 3. Tails absent 1

Rha3
Tail projecting from the posterior edge of the interfemoral membrane.

Step 8. Tail long or stout

Tlo1
Tail protruding from upper surface of interfemoral membrane.
(Genus Taphozous)

Genus Taphozous

Ohe2
Tail completely enclosed (except for last 2-3 vertebrae in some species) in interfemoral membrane.

Step 9. Noseleaves