Atlantic horseshoe crab | |
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St. Lucie County Aquarium, Florida | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Chelicerata |
Order: | Xiphosura |
Family: | Limulidae |
Genus: | Limulus |
Species: | L. polyphemus
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Binomial name | |
Limulus polyphemus | |
Synonyms | |
Monoculus polyphemus Linnaeus, 1758 |
The Atlantic horseshoe crab (Limulus polyphemus), also known as the American horseshoe crab, is a species of horseshoe crab, a kind of marine and brackish chelicerate arthropod.[1] It is found in the Gulf of Mexico and along the Atlantic coast of North America.[1] The main area of annual migration is Delaware Bay along the South Jersey Delaware Bayshore.[3]
Their eggs were eaten by Native Americans,[4] but today Atlantic horseshoe crabs are caught for use as fishing bait, in biomedicine (especially for Limulus amebocyte lysate) and science.[1] They play a major role in the local ecosystems, with their eggs providing an important food source for shorebirds, and the juveniles and adults being eaten by sea turtles.[1][3]
The other three extant (living) species in the family Limulidae are also called horseshoe crabs, but they are restricted to Asia.[5] Despite the name, horseshoe crabs are more closely related to arachnids like spiders and scorpions than they are to crabs or other crustaceans.[6]