AKC Standard: The pasterns are strong, neither steep nor down. The feet are neither so long as the foot of the hare, nor so round as that of the cat; well split -up toes, and the nails black. Dewclaws are generally removed.
Clarification:A Pug's feet are more oval than round with well split-up toes and thick pads. The nails are black.
Undesirable: Straight or broken down pasterns; flat feet; splayed feet; white nails.