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Examples of shells with A, a flattened spire (Polygyratia); B, a globose spire (Natica); C, a greatly produced spire (Terebra). 1895. Shells.

Image of Polygyratia Gray 1847

Description:

Examples of shells with A, a flattened spire (Polygyratia); B, a globose spire (Natica); C, a greatly produced spire (Terebra).

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Source Information

license
cc-publicdomain
publisher
Freshwater and Marine Image Bank, University of Washington Libraries Digital Collections
provider
Freshwater and Marine Image Bank