Genus: Crepidula
En art i Norge.
Systematics :
| Kingdom | Animals (Animalia) | |||||||
| Phylum | Molluscs (Mollusca) | |||||||
| Klasse | Snails (Gastropoda) | |||||||
| Subclass | Forgjellesnegler (Prosobranchia) | |||||||
| Order | Mesogastropoda | |||||||
| Family | Begersnegl, tøffelsnegl (Calyptraeidae) | |||||||
| Genus | Crepidula | |||||||
| Species | Tøffelsnegl (Crepidula fornicata) | |||||||
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