Toy dog term teacup dog, thus the toy/teacup boundary remains fuzzy. The standard size for a toy dog ranges from 4 to 7 pounds; anything smaller than the standard size of a toy dog may be a runt of a litter. No official size defines a teacup dog, but unofficially a teacup dog is considered to be a dog that is 17 inches or less and weighs 4 lbs or less at the age of 12 months. There are no specific teacup dog breeds, but popular types for breeding teacup dogs include: Shih Tzu, Chihuahua, Yorkshire Terrier, Poodle, Pug, Maltese, Pomeranian, and
Dog type very old types of various kinds, and would fit into multiple categories. The following are dog types and subtypes. A single type of dog may have been developed for multiple sorts of work, so there is some overlap. Broad categories are listed first, then sub-types. For a list of individual dog breeds, see List of Dog Breeds. "also see" Pastoral Dogs and Guard Dogs Note 1. Every modern dog breed has a written "Standard", that describes in detail aspects of appearance. Standards are the basis of the sport of dog showing, as each dog is compared against the ideal of