Dragonettes

As the books describe them

The heads of the dragonettes were as big as barrels and covered with hard, greenish scales that glittered brightly under the light of the lanterns. Their front legs, which grew just back of their heads, were also strong and big; but their bodies were smaller around than their heads, and dwindled away in a long line until their tails were slim as a shoe-string. Dorothy and the Wizard in Oz, ch. 13