Lithosphere is a dwarf demon from Plane. He was first mentioned in Vale of the Vole.
Lithosphere is in charge of keeping track of the rocks and continental plates of Earth, so he created Pangaea. He fell to sleep, and Pangaea broke apart. Earth blasted him to a thousand pieces, and those pieces fell onto Xanth and created the creatures there. He lost a game with Xanth and was forced to meld his world with Xanth, underneath. He is also known as Litho.
Novels: Vale of the Vole, Currant Events, Stork Naked, Well-Tempered Clavicle
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.