Prickleboggles are a Nanodragon species mentioned in The Incomplete Book of Dragons.
Like all Nanodragons, Prickleboggles did not take part in the Dragon Rebellion.
Prickleboggles have the appearance of a gangly spider with a bat's head and are depicted as having brownish coloration.
Prickleboggles are not known for their intelligence. Many Nanodragon species cannot speak (or perhaps even understand) Dragonese — most likely the Prickleboggle is one of them.
A pictorial reference of the Prickleboggle appears in this reference book, but not much information is written about them.