This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Pard (Medieval Bestiaries)
A pard is the Greek word for the leopard, which is listed in medieval bestiaries and in Pliny the Elder's book Natural History. Over the years, there have been many different depictions of the creature including some adaptations with and without manes and some in later years with shorter tails. However, one consistent representation shows them as large felines often with spots.
By the medieval era, pards were commonplace in books and artwork where various depictions of them are shown (some even including "bearded manes"). In the seventh-century book Etymologies, Isidore of Seville describes their coat as being mottled like a giraffe's. He goes on to describe them as being "headlong for blood" by being capable of killing their prey in a single leap.