Oligotrichida
Oligotrichida
[¦äl·ə·gō′trik·ə·də] (invertebrate zoology)
A minor order of the Spirotrichia; the body is round in cross section, and the adoral zone of membranelles is often highly developed at the oral end of the organism.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.