claw shrimp


claw shrimp

any member of the crustacean order Conchostraca (subclass Branchiopoda), a group of about 200 species inhabiting shallow freshwater lakes, ponds, and temporary pools throughout the world. Clam shrimps are so called because their entire body is contained within a bivalve shell (carapace) that resembles the shell of a small mollusk. Inside the shell the trunk of the animal carries up to 28 pairs of leaflike limbs that filter microscopic food particles and also assist in locomotion in those species that swim. The first two pairs of trunk limbs in the male form a claw for clasping the female during mating, hence the other common name for the group. Conchostracans are abundant in the fossil record dating back to the Silurian Period (438 to 408 million years ago).

Learn more about claw shrimp with a free trial on

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Previous Definition: claw setting
Next Definition: claw son
Words Near: claw shrimp
More from
Synonyms and Antonyms for claw shrimp
More from
Search for articles containing claw shrimp
More from Translator Word FAQs presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature