Penion
| Penion Temporal range: Early Paleocene to Recent, | |
|---|---|
| A siphon whelk Penion ormesi, collected from Golden Bay in New Zealand | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Austrosiphonidae |
| Genus: | Penion P. Fischer, 1884 |
| Species | |
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See text | |
| Synonyms | |
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Penion is a genus of large marine snails, commonly known as siphon whelks, classified within the mollusc family Austrosiphonidae.