| 1935. | Umbonium (Suchium) akitanum Suzuki Otuka, Y. 1935b p. 849, pl. 54, fig. 63 PreviousNo: 2028 |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Trochidae: |
| Geologic Time: | Cenozoic: |
| Otuka, Y., 1935b: The Oti graben in southern Noto peninsula, Japan. (Part 3). Bulletin of the Earthquake Research Institute, Tokyo Imperial University, vol. 13, pt. 4, pp. 846–909, pls. 53–57. (Reference No. 0386) |
 |
| Ichikawa, T., 1983, no. 9, p. 87. |
