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An Illustrated and Cross-Referenced Glossary of Malacological and Conchological Terms |
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| by Paul S. Mikkelsen | |||
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| Term | Definition |
| CORRUGATE | Folded or ridged on the surface; broadly or heavily sculptured with FOLDS. | |
| GROWTH RUGA | Irregular wrinkle on surface of shell, of similar origin to growth line, but corresponding to more pronounced hiatus in growth; see also: RUGA. | |
| RUGA (pl. RUGAE) |
An irregular fold in the surface SCULPTURE. | |
| Copyright ©Paul S. Mikkelsen, All Rights Reserved | Return to Home Page | Return to Top | Over 1700 Terms in the Glossary! |