"Sinum" festiva (Yokoyama)
| 1989. | "Sinum" festiva (Yokoyama) Holotype Majima, R. 1989 p. 71, pl. 9, fig. 21a–c |
| 1958. | Eunaticina festiva Yokoyama Holotype Makiyama, J. 1958 pl. 25, fig. 6 |
| 1925. | Sigaretus festivus Yokoyama, 1925 Holotype Yokoyama, M. 1925c p. 8, pl. 1, fig. 6 |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Naticidae: |
| Geologic Time: | Cenozoic: |
| Majima, R., 1989: Cenozoic fossil Naticidae (Mollusca: Gastropoda) in Japan. Bulletins of American Paleontology, vol. 96, no. 331, pp. 1–159, pls. 1–14. (Reference No. 0660) |
| Makiyama, J., 1958: Matajiro Yokoyama's Tertiary fossils from various localities in Japan. Part 2. Palaeontological Society of Japan, Special Papers, no. 4, pp. 1–6, pls. 25–57. (Reference No. 0368) |
| Yokoyama, M., 1925c: Tertiary Mollusca from Shinano and Echigo. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 1, pt. 1, pp. 1–23, pls. 1–7. (Reference No. 0475) |
 |
| Ichikawa, T., 1995, no. 33, p. 32. |
| Ichikawa, T., 1983, no. 9, p. 47. |
| Ichikawa, T., 1983, no. 9, p. 313. |
