Ivory Sand Dollar, Mellita quinquiesperforata
Despite their fossil-like appearance, these beautiful creatures are alive today. They are Echinoderms, related to starfish and sea urchins. The petal-like pattern is basically their gill; it allows them to breathe. The holes in their body, called lunnules, allow for wave currents to flow past them rather than lifting them up and carrying them away. A perfect gift for the beachcomber in your life.
Nick recommends size: SMALL
Sizes are SM, MD, LG, & XL.