Volutopsis hirasei Pilsbry
| 1959. | Volutopsis hirasei Pilsbry Makiyama, J. 1959 pl. 66, fig. 3 |
| 1928. | Volutopsis hirasei Pilsbry Yokoyama, M. 1928b p. 357, pl. 68, fig. 3 |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Diaphanidae: |
| Geologic Time: | Cenozoic: |
| Makiyama, J., 1959: Matajiro Yokoyama's Tertiary fossils from various localities in Japan. Part 3. Palaeontological Society of Japan, Special Papers, no. 5, pp. 1–4, pls. 58–86. (Reference No. 0369) |
| Yokoyama, M., 1928b: Neogene shells from the oil-field of Higashiyama, Echigo. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 2, pt. 7, pp. 351–362, pls. 68–69. (Reference No. 0495) |
 |
| Ichikawa, T., 1983, no. 9, p. 60. |
| Ichikawa, T., 1983, no. 9, p. 374. |
