 The Florentine Codex  describes an Aztec religious observance during the monthly feast of Izcalli (dedicated to Xiuhtecuhtli and Tlaloc), when boys had to hunt in the swamps for small water-related animals, such as snakes, lizards, frogs and even dragonfly larvae, and present these to elders serving as the guardians of the fire deity.As a reward for the offerings, the priest would give them steamed corn dough (tamales) stuffed with amaranth greens.At this occasion the god was represented as young with turquoise and quetzal feathers for ceremonial purposes.