Mollusca

Class Aplacophora

The class Aplacophora contains about 300 species of wormlike, deepwater marine mollusks formerly classified with the sea cucumbers in Echinodermata. These mollusks lack shells and in many cases a foot as well. Generally small, they burrow in the upper layer of the sea bottom.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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