An Illustrated and Cross-Referenced Glossary of Malacological and Conchological Terms |
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by Paul S. Mikkelsen |
Term | Definition |
APERTURAL LIP | The most recently formed margin of the aperture; = PERISTOME; see also: HOLOSTOMATE; SIPHONOSTOMATE; see also: INNER APERTURAL LIP; OUTER APERTURAL LIP. | |
APERTURAL LIP, INNER | [need definition]. See illustration: Composite Gastropod. See also: APERTURAL LIP; OUTER APERTURAL LIP | |
APERTURAL LIP, OUTER | [need definition]. See illustration: Composite Gastropod. See also: APERTURAL LIP; INNER APERTURAL LIP. | |
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