Semicassis pyrum
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.
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A shell of Semicassis pyrum, ventral view showing the parietal callus
| Semicassis pyrum | |
|---|---|
.JPG.webp) | |
| A shell of Semicassis pyrum, lateral view | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Cassidae |
| Genus: | Semicassis |
| Species: | S. pyrum |
| Binomial name | |
| Semicassis pyrum (Lamarck,1822) | |
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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