An Illustrated and Cross-Referenced Glossary of Malacological and Conchological Terms |
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by Paul S. Mikkelsen |
Term | Definition |
GROWTH LINE | A line on the shell surface indicating the position of the shell margin at an earlier stage of growth; = INCREMENTAL LINE; = CONCENTRIC LINE. See illustration: Composite Gastropod and Composite Bivalve. See also: COLLABRAL LINES. | |
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