Guildfordia

Guildfordia is a genus of sea snails, marine gastropod mollusks in the family Turbinidae, the turban snails. The imperforate shell is wheel-shaped. It is low-conic and granulose above, convex below. The periphery is armed with long slender radiating spines, which are concealed at the sutures. The operculum is flat, with a subobsolete arcuate rib o...
Found on http://en.wikipedia.org/wiki/Guildfordia
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