anaptychus
From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 23:39, 13 September 2013 by Andreas Plank (Talk | contribs)
anaptychus (noun; Greek an, without; apo-, away from; ptychos, fold): (Mollusca: Cephalopoda) A shelly plate found in some fossil cephalopods, thought to function as an operculum
See also: synaptychus.
