Keyhole Sand Dollars. The term sand dollar (or sea cookie or snapper biscuit in New Zealand, or pansy shell in South Africa) refers to species of extremely flattened, burrowing echinoids belonging to the order Clypeasteroida. Some species within the order, not quite as flat, are known as sea biscuits. Related animals include the sea urchins, sea cucumbers and starfish.
"i decided that everyone, including myself, just needed a little beach imagery today in the midst of this unrelentingly aggressive north american winter. deep breath. smell the iodine and briny air. let it out. now put your boots on and don’t forget a scarf." - Mary Jo Hoffman sand dollars (flattened, burrowing sea urchins belonging to the order clypeasteroida)