| 1938. | Cerithium (Proclava) ancisum (Yokoyama) Otuka, Y. 1938c p. 42, pl. 4, fig. 31 PreviousNo: 10024 |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Cerithiidae: |
| Geologic Time: | Cenozoic: |
| Otuka, Y., 1938c: Mollusca from the Miocene of Tyugoku, Japan. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 5, pt. 2, pp. 21–45, pls. 1–4. (Reference No. 0398) |
| Ichikawa, T., 1983, no. 9, p. 107. |
