Hi there Rue! Welcome!

Like BumbleB said, the numbers are #ofmales.#ofgirls.#ofunknownsexes

Lots of times people will use this to list how many of each morph they have (in regards to ball pythons). So 1.2 spiders and 0.3 pastels would mean they have 1 spider male, 2 spider females, zero pastel males, and 3 pastel females. If you still have trouble with it, I'm sure you could list your collection out individually and someone will create that numbered list for you.