Canine Metacarpus and Digit
The dog is a digitigrade that walks on four digits (four digital pads). An interosseus muscle supports each fetlock joint. The four fetlock joints press against a single metacarpal pad.
Equine Foot (Bisected)
The horse has a single digit. The horse is an ungulate that walks on a hoof within which the distal phalanx is suspended by contact between laminae.