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horseshoe crab

noun

  1. a large marine arthropod, Limulus polyphemus, of shallow coastal waters of eastern North America and eastern Asia, having both compound and simple eyes, book gills, a stiff tail, and a brown carapace curved like a horseshoe: a living fossil related to the woodlouse.


horseshoe crab

noun

  1. any marine chelicerate arthropod of the genus Limulus, of North America and Asia, having a rounded heavily armoured body with a long pointed tail: class Merostomata Also calledking crab
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of horseshoe crab1

First recorded in 1765–75
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Example Sentences

In 1859 Charles Darwin coined the term “living fossil” to describe lineages that have looked the same for tens of millions of years, such as the coelacanth, sturgeon, and horseshoe crab.

The impressive exhibit features shells the size of small dogs, adult hand-sized sand dollars, giant horseshoe crab domiciles, column-like shells, leather corals, square sea stars and other curiosities among thousands.

The grand prize this year was won by Laurent Ballesta of France for his image of a horseshoe crab being followed by three small fish.

The tri-spine horseshoe crab has survived for more than 100 million years but now faces habitat destruction and overfishing for food and for its blood, used in the development of vaccines.

From BBC

Fish and Wildlife Service issued a ruling on Monday that calls for the end of horseshoe crab harvesting in Cape Romain National Wildlife Refuge in South Carolina from March 15 to July 15.

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horseshoe bathorseshoe fern