The basic anthropomorphic form varies. Child gods are depicted nude, as are some adult gods when their procreative powers are emphasized. Certain male deities are given heavy bellies and breasts, signifying either androgyny or prosperity and abundance. Whereas most male gods have red skin and most goddesses are yellow—the same colors used to depict Egyptian men and women—some are given unusual, symbolic skin colors. Thus, the blue skin and paunchy figure of the god Hapi alludes to the Nile flood he represents and the nourishing fertility it brought. A few deities, such as Osiris, Ptah, and Min, have a "mummiform" appearance, with their limbs tightly swathed in cloth. Although these gods resemble mummies, the earliest examples predate the cloth-wrapped style of mummification, and this form may instead hark back to the earliest, limbless depictions of deities.