horseshoe crabs

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Definition of horseshoe crabs in English English dictionary: plural form of horseshoe crab; limulidae
horseshoe crab: A type of chelicerate arthropod, of the genus Limulus, resembling a crab
horseshoe crab: Any of various marine arthropods of the class Merostomata, especially Limulus polyphemus or Xiphosura polyphemus of eastern North America, having a large rounded body and a stiff pointed tail. Also called king crab, limulus. Any of four extant species of marine arthropods (order Xiphosura, subphylum Chelicerata), found on the eastern coasts of Asia (three species) and North America (one species). Despite the name, horseshoe crabs are not crabs; they are more closely related to scorpions. Fossil relatives date back 505 million years. They are most abundant in estuarine waters. The North American species, Limulus polyphemus, can grow to more than 2 ft (60 cm) long. The body consists of three parts hinged together: a broad, horseshoe-shaped cephalothorax; a much smaller, segmented abdomen; and a long, sharp tail-spine, or telson. They spawn on sandy beaches in spring and summer. Adults feed on marine worms; larvae feed on small organisms
horseshoe crab: {i} primitive marine arthropod shaped like a horseshoe
horseshoe crab: 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

horseshoe crabs

Hyphenation

horse·shoe crabs

hôrsşu kräbz

/ˈhôrsˌsʜo͞o ˈkrabz/ /ˈhɔːrsˌʃuː ˈkræbz/

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