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segmented worms

Annelida

The animals in the Annelida are segmented worms. They have no legs, and no hard skeleton. Unlike mollusks, annelid bodies are divided into many little segments, like rings joined together. There are many other kinds of worms, but only annelids are segmented this way. There are three main groups of annelids, the earthworms (and their relatives), the leeches , and a big group that lives in the ocean and are called polychaetes (pol-ee-keets). We only have information about earthworms and leeches in the Critter Catalog.

 
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. "Annelida" (On-line), Animal Diversity Web. Accessed April 19, 2014 at http://www.biokids.umich.edu/accounts/Annelida/

BioKIDS is sponsored in part by the Interagency Education Research Initiative. It is a partnership of the University of Michigan School of Education, University of Michigan Museum of Zoology, and the Detroit Public Schools. This material is based upon work supported by the National Science Foundation under Grant DRL-0628151.
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