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

by Paul S. Mikkelsen

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Search results for:   SPIRE, SUNKEN       1 term was found.

Term	Definition

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SPIRE, SUNKEN		The condition of having the POSTNUCLEAR WHORLS higher than the spire, or NUCLEAR WHORLS (the nuclear whorls are not hidden from view, as with an involute spire); see also: SPIRE, INVOLUTE.

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Over 1700 Terms in the Glossary!