Xiphosurus polyphemus

Thesaurus

Noun

1.Xiphosurus polyphemus - 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 lousehorseshoe crab, Limulus polyphemus, king crabarthropod - invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitingenus Limulus, Limulus - type genus of the family Limulidae