Penion winthropi
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| Penion winthropi | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Austrosiphonidae |
| Genus: | Penion |
| Species: | †P. winthropi |
| Binomial name | |
| †Penion winthropi (Finlay, 1930) | |
Penion winthropi is an extinct species of marine snail or whelk, belonging to the true whelk family Austrosiphonidae. [1]