This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Peri (Persian)
Peris (singular: peri) are exquisite, winged spirits renowned for their beauty. Peris were later adopted by other cultures. They are described in one reference work as mischievous beings that have been denied entry to paradise until they have completed penance for atonement.
The character of the Peri, as a supernatural wife, shares similar traits with the swan maiden, in that the human male hides the Peri's wings and marries her. After some time, the Peri woman regains her wings and leaves her mortal husband. Peris were the target of a lower level of evil beings called divs, who persecuted them by locking them in iron cages.