These are very rare Gods belonging to the civilization that pre-dated the Maya. Anthropologists, for some reason best known to themselves, have designated them by roman numerals, which is all we have to go on. There are ten of them:
God i. A dragonish character with flaming eyebrows, and a good old mix and match of crocodile, jaguar, forked tongue and talons. Seems important and probably did Sun, Earth and Fertility.
God ii. A very young Maize God, as he seems to be an infant with maize growing from a cleft in its head.
God iii. A Bird Monster type. Although not like any bird you have ever seen. He is believed to be connected to chinless dwarfs. How, where, why or who actually believes this is past all human understanding.
God iv. Petulant-looking Jaguar Monster type. Could be God of Weather Forecasting.
God v. Whoops. The anthropologists, without a word of apology, haven’t bothered.
God vi. He just grins, most unpleasantly.
God vii. Another dragonish wotsit.
God viii. Has a fish face.
God ix. We’ve been let down again. Nobody there.
God x. Disembodied Head, who fits the description were-jaguar.