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

by Paul S. Mikkelsen

Look for:  
Gastropod Shapes
Grouped by Shape or Type

(or display shapes listed with definitions or in a table, ordered alphabetically)

Conical Shapes

conical

biconic

obconic

coeloconoid


Tall and Narrow Shapes

high spired

turriform (=turriculate)

cyrtoconoid

fusiform

spindle-shaped


Enveloping Whorls (no spire exposed)

convolute

involute

bulloid

isostrophic

cypraeiform


Regular Shapes

cylindrical

obovate

ovate

pupiform

turbinate


Coiling Direction Round Shapes

dextral

sinistral

hyperstrophic

bulloid

globose


Flat Shapes

lenticular

discoidal

low spired

planispiral


Coiling Cap Shapes

tightly coiled

loosely coiled

disjunct whorl

patelliform

slipper-shaped


Miscellaneous Shapes

stromboid

tubular

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