Pelmatozoa

Pelmatozoa

[pel‚mad·ə′zō·ə]
(invertebrate zoology)
A division of the Echinodermata made up of those forms which are anchored to the substrate during at least part of their life history.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.