Common Name
The term "sand dollar" derives from the appearance of the tests (skeletons) of dead individuals after being washed ashore. The test lacks its velvet-like skin of spines and has often been bleached white by sunlight. To beachcombers of the past, this suggested a large, silver coin, such as the old Spanish or American dollar (diameter 38-40mm).
Other English names for the creatures include sand cake and cake urchin. In South Africa, they are known as pansy shells from their suggestion of a five-petaled garden flower. The Caribbean sand dollar or inflated sea biscuit, Clypeaster rosaceus, is thicker in height than most.
In Spanish-speaking areas of the Americas, the sand dollar is most often known as galleta de mar (sea cookie); the translated term is often encountered in English.
The various common terms (sand dollar, sea biscuit, etc.) sometimes appear printed in hyphenated forms (sand-dollar, sea-biscuit).
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Famous quotes containing the word common:
“The common experience is, that the man fits himself as well as he can to the customary details of that work or trade he falls into, and tends it as a dog turns a spit. Then he is part of the machine he moves; the man is lost.”
—Ralph Waldo Emerson (1803–1882)
“To this war of every man against every man, this also is consequent; that nothing can be Unjust. The notions of Right and Wrong, Justice and Injustice have there no place. Where there is no common Power, there is no Law; where no Law, no Injustice. Force, and Fraud, are in war the two Cardinal virtues.”
—Thomas Hobbes (1579–1688)