| Nominal Species (n = 5) | Present allocation (n = 5) | Ref. |
|---|---|---|
| Tylodina americana Dall, 1890 | Tylodina americana | 19 |
| Umbrella corticalis Tate, 1889 | Tylodina corticalis | 7727 |
| Tylodina fungina Gabb, 1865 | Tylodina fungina | 19 |
| Patella perversa Gmelin, 1791 | Tylodina perversa | 83435 |
| Tylodinella spongotheras Bertsch, 1980 | Anidolyta spongotheras | 19 |