Cladocopa

Cladocopa

[kla′däk·ə·pə]
(invertebrate zoology)
A suborder of the order Myodocopida including marine animals having a carapace that lacks a permanent aperture when the two valves are closed.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.