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

by Paul S. Mikkelsen

Look for:  
Search results for:   XENOMORPHISM       1 term was found.

Term Definition

XENOMORPHISM   Special SCULPTURE at the UMBO region of the unattached valve resembling the configuration of the substratum onto which the attached valve is or was originally fixed. Known in the Anomiidae, Gryphaeidae, Ostreidae and other PLEUROTHETIC and cemented families. It is on the right valve in oysters and on the left valves in Anomia. Erroneously called ALLOMORPHISM by some authors. See pp. 98-99 of: Stenzel, H.B., et. al., 1957.

Copyright ©Paul S. Mikkelsen, All Rights Reserved Return to Home Page  |  Return to Top Over 1700 Terms in the Glossary!