| Penion maximus | |
|---|---|
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| A shell of Penion maximus | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Austrosiphonidae |
| Genus: | Penion |
| Species: | P. maximus
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| Binomial name | |
| Penion maximus (Tryon, G.W., 1881)
| |
Penion maximus is a species of very large predatory sea snail or whelk, commonly known as giant whelk or great whelk, a marine gastropod mollusc in the family Austrosiphonidae.[1]
- ^ Kantor, Yuri I.; Fedosov, Alexander E.; Kosyan, Alisa R.; Puillandre, Nicolas; Sorokin, Pavel A.; Kano, Yasunori; Clark, Roger; Bouchet, Philippe (2022). "Molecular phylogeny and revised classification of the Buccinoidea (Neogastropoda)". Zoological Journal of the Linnean Society. 194 (3): 789–857. doi:10.1093/zoolinnean/zlab031.