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Definition of Xiphosurus polyphemus
1. Noun. Large marine arthropod of the Atlantic coast of North America having a domed carapace that is shaped like a horseshoe and a stiff pointed tail; a living fossil related to the wood louse.
Exact synonyms: Horseshoe Crab, King Crab, Limulus Polyphemus
Generic synonyms: Arthropod
Group relationships: Genus Limulus, Limulus
Generic synonyms: Arthropod
Group relationships: Genus Limulus, Limulus