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Calliostoma occidentale 001

Image of boreal topsnail

Description:

Summary[edit] Description: English: Calliostoma occidentale (Mighels & C. B. Adams, 1842); family Calliostomatidae. Date: 1889. Source: Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia; pl. 37 # 2, 3. Author: G.W. Tryon.

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