Jupiter is a major demon from the Solar System in the Milky Way Galaxy. He was first introduced in Yon Ill Wind.
Jupiter has the ambiance of the Strong Nuclear Force. He is the leading Major Demon. He was hosted by Sim and was assigned the emotion of fear by the Swell Foop. His name is stylized as JU[P/I]ter.
Novels: Yon Ill Wind, Swell Foop, Up in a Heaval, Pet Peeve, Stork Naked, Board Stiff, Five Portraits
Human men and women will not have a species in their entries. Also, if the surname of the character is the character's species, it was dropped.
If the character is a child, it will be in the description. The child will more than likely be an adult by this time in the Xanth series.
Many species are single gender, so their entries will not mention it. The species are Fury, Muse, basilisk, cenmaid, cenmare, cockatrice, dryad, maenad, sand witch, sandman, and woodwife. Harpies and nymphs are usually female, and fauns are usually male; but there have been a few exceptions that are noted.
In some instances, I have made educated guesses on gender, species, and some birth years.