An Illustrated and Cross-Referenced Glossary of
Malacological and Conchological Terms

by Paul S. Mikkelsen

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Term Definition

PSEUDOUMBILICUS   An opening formed by the distal portions of the canals of previous varices that are arranged obliquely but adjacent to one another to form an UMBILICUS-like pit (as in the Muricidae). See illustration: Composite Gastropod.
   


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