Dichotomous Key/Chiroptera

1

 * Claw on second toes of the forelimb
 * Present -
 * Not present -

3: Microchiroptera

 * Tail length
 * Long - ../Rhinopomatidae/
 * Short or absent -

4

 * Shape of posterior tip of last caudal vertebrae
 * T-shaped - ../Nycteridae/
 * Same as other vertebrae -

5

 * Suction cups on wrists and ankles
 * Present -
 * Not present -

6

 * Number of phalanges
 * Two, united for most of their length - ../Myzopodidae/
 * Other - ../Thyropteridae/

7

 * Secondary fold on tragus
 * Present - ../Mormoopidae/
 * Not present, or tragus not present -

8

 * Tragus
 * Divided - ../Megadermatidae/
 * Not divided, or not present -