Florida Keyhole Sand Dollars (Leodia sexiesperforata) For Sale

This item is a Florida Keyhole Sand Dollar (Mellita quinquiesperforata) skeleton, which is commonly called a "test".What it is: The bleached, white object you found is the calcium carbonate skeleton of a burrowing marine echinoderm, which is closely related to sea stars and sea urchins.Identifying features: The unique petal-like flower pattern on the top is called a "petaloid," which marks the area where specialized tube feet are used for breathing. The distinct slits or holes (lunules) help them stay anchored in sandy ocean bottoms and pass food toward their mouths.Living vs. dead: When alive, these creatures are covered in tiny, moving spines and cilia, and appear reddish-brown or purple. The pristine white skeletons wash up on the shoreline after the animal has died and the sun bleaches the test.Common uses: Bleached sand dollars are highly sought after for beach-themed home decor, coastal craft projects, and as holiday ornaments