| Calliobasis phimosa | |
|---|---|
 | |
| Shell of Calliobasis phimosa (holotype at MNHN, Paris) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Superfamily: | Seguenzioidea |
| Family: | Seguenziidae |
| Subfamily: | Seguenziinae |
| Genus: | Calliobasis |
| Species: | C. phimosa |
| Binomial name | |
| Calliobasis phimosa Marshall, 1991 | |
Calliobasis phimosa is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.