Semicassis_pyrum

<i>Semicassis pyrum</i>

Semicassis pyrum

Species of gastropod

Semicassis pyrum, common name the "pear bonnet" or "common helmet", is a species of large sea snail, a marine gastropod mollusc in the family Cassidae, the helmet shells, bonnet shells and their allies.

A shell of Semicassis pyrum, ventral view showing the parietal callus

Quick Facts Semicassis pyrum, Scientific classification ...

References

    • Powell A. W. B., William Collins Publishers Ltd, Auckland 1979 ISBN 0-00-216906-1
    • "Semicassis pyrum". Gastropods.com. Retrieved 16 January 2019.

    Media related to Semicassis pyrum at Wikimedia Commons


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