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Sea urchins or urchins are small, spiny, globular animals that compose part of class Echinoidea. They are found in all oceans. Their shell, or "test", ...
en.wikipedia.org/wiki/Sea_urchin - Similar
More sea urchin information and pictures may be had at Animal Diversity Web: Echinoidea. The Sea Urchin Harvesters Association site and the TED Sea Urchin ...
www.ucmp.berkeley.edu/echinodermata/echinoidea.html - Similar
Class: Echinoidea. Members of this Class. There are approximately 940 species of echinoids distributed worldwide in marine habitats from the intertidal to ...
animaldiversity.ummz.umich.edu/site/accounts/informat... - Similar
Sep 15, 2009 ... For more multimedia, look at Echinoidea on Wikimedia Commons. Retrieved from " http://species.wikimedia.org/wiki/Echinoidea" ...
species.wikimedia.org/wiki/Echinoidea - Similar
What is a(n) Echinoidea – Our zoology dictionary has ecology, physiology, genetics of Echinoidea, and the evolution of Echinoidea.
www.encyclopedia.com/doc/1O8-Echinoidea.html - Similar
Echinoidea (echinoids; sea urchins; sand dollars, heart urchins; phylum Echinodermata) Class of free-living echinoderms in which the body is enclosed in a ...
www.encyclopedia.com/doc/1O13-Echinoidea.html - Similar
Sea Urchins and Sand Dollars: Echinoidea - Physical Characteristics, Behavior And Reproduction, Sea Urchins, Sand Dollars, And People, Long-spined Sea ...
animals.jrank.org/pages/1625/Sea-Urchins-Sand-Dollars... - Similar
Hutchinson encyclopedia article about Echinoidea. Echinoidea. Information about Echinoidea in the Hutchinson encyclopedia. class echinoidea.
encyclopedia.farlex.com/Echinoidea - Similar
The members of this order - commonly known as Sea-urchins - are characterised by the possession of a subglobose, discoidal, or depressed body, ...
chestofbooks.com/animals/Manual-Of-Zoology/Chapter-XV... - Similar
Definition and other additional information on Echinoidea from Biology-Online. org dictionary.
www.biology-online.org/dictionary/Echinoidea - Similar
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