"Rissoa" ? sp.
| 1932. | "Rissoa" ? sp. Otuka, Y. 1932 p. 110, fig. 2c |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Rissoidae: |
| Geologic Time: | Cenozoic: |
| Otuka, Y., 1932: On the shells of fossiliferous strata, 15m. below the earth's surface, in Gobancho, Kojimachi-ku, Tokyo. Venus, vol. 3, no. 2, pp. 109–112. (in Japanese) (Reference No. 0382) |
 |
| Ichikawa, T., 1983, no. 9, p. 75. |
