| Plesiotrochus monachus | |
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | incertae sedis |
| Family: | Plesiotrochidae |
| Genus: | Plesiotrochus |
| Species: | P. monachus |
| Binomial name | |
| Plesiotrochus monachus (Crosse & P. Fischer, 1864) | |
Plesiotrochus monachus is a species of sea snail, a marine gastropod mollusc in the family Plesiotrochidae.