| 1926. | Polinices (Neverita) ampla (Philippi) |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Naticidae: |
| Geologic Time: | Cenozoic: |
| Yokoyama, M., 1926b: Tertiary Mollusca from Shiobara in Shimotsuke. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 1, pt. 4, pp. 127–138, pls. 16–20. (Reference No. 0479) |
 |
| Ichikawa, T., 1983, no. 9, p. 319. |
