The body is slightly longer than tall; shorter bodies in males are desirable. The eyes are full and not protruding and set well apart; ears are large and held upright when alert, flaring to sides when in repose; broken or cropped ears are a disqualification.

The Chihuahua's neck is slightly arched; ribs well sprung but avoiding barrel shape; tail moderately long, carried sickle up or out, or curled; tail should never be tucked between legs, or bobbed or docked!

The two coat varieties are Long and Smooth. The Long coat is soft in texture, flat or slightly curly with an undercoat and fringe on ears, tail, legs and neck; never appearing bare from excessive thinness. The Smooth coat is soft, close and glossy. Colors vary tremendously, solid, marked and splashed.

Considered the tiniest of all dog breeds, the Chihuahua necessarily is a gentle but swift moving housedog. Dogs are not conscious of their size and the Chihuahua's big dog bark clearly indicates that he is a confident, bold canine.

Nonetheless, he is described as clannish and more comfortable with members of his own breed. He is territorial and will protect his master or mistress with his whole heart.

Chihuahuas enjoy the good life and don't mind extra attention and coddling. To avoid the aggressive, yappy adult, socializing the Chihuahua with friends and other dogs is advisable.