The Atlantic horseshoe crab, Limulus polyphemus, is a marine chelicerate arthropod. Despite its name, it is more closely related to spiders, ticks, and scorpions than to crabs. Horseshoe crabs are most commonly found in the Gulf of Mexico and along the northern Atlantic coast of North America. A main area of annual migration is Delaware Bay, although stray individuals are occasionally found in Europe.
The other three species in the family Limulidae are also called horseshoe crabs. The Japanese horseshoe crab (Tachypleus tridentatus) is found in the Seto Inland Sea, and is considered an endangered species because of loss of habitat. Two other species occur along the east coast of India: Tachypleus gigas and Carcinoscorpius rotundicauda. All four are quite similar in form and behavior.
Read more about Atlantic Horseshoe Crab: Names and Classification, Anatomy and Physiology, Life Cycle and Behavior, Evolution, Medical Uses, Conservation and Management
Famous quotes containing the words atlantic, horseshoe and/or crab:
“We are eager to tunnel under the Atlantic and bring the Old World some weeks nearer to the New; but perchance the first news that will leak through into the broad, flapping American ear will be that the Princess Adelaide has the whooping cough.”
—Henry David Thoreau (1817–1862)
“If the horseshoe sinks, then drink it.”
—Plains recipe for coffee.
“There are no small number of people in this world who, solitary by nature,
always try to go back into their shell like a hermit crab or a snail.”
—Anton Pavlovich Chekhov (1860–1904)