Specklehounds are dragons seen in The Incomplete Book of Dragons.
Based on the pictures of Specklehounds, they are very much resemble Dachshunds. They have floppy ears, very long bodies, and four short legs. They also have a spade tail, spikes running down their spines, and a pair of wings. Specklehounds also appear to come in a variety of colors including pink, yellow, orange, and blue.
Specklehounds can speak Dragonese and have a good sense of smell.
Specklehounds are small trainable dragon used for hunting or as lap dragons. Aunt Burlysweet has a Specklehound with five babies named Twiglet, Spicklet, Joglet, Piggerwrigglet, and Niff.
Specklehounds sided with the humans in the Dragon Rebellion.
Specklehounds appear briefly in this reference book. Not much information is given about them, but they are also listed in the 'Dragon Key' at the back of the book.