| 1959. | Mya (Arenomya) japonica Jay Makiyama, J. 1959 pl. 72, fig. 3 |
| 1929. | Mya arenaria Linne Yokoyama, M. 1929b p. 385, pl. 74, fig. 3 |
| Condition: | Missing |
| Taxonomy: | Mollusca: Bivalvia: Myidae: |
| 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., 1929b: Molluscan fossils from Karafto. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 2, pt. 9, pp. 369–398, pls. 71–76. (Reference No. 0497) |
 |
| Ichikawa, T., 1983, no. 9, p. 64. |
| Ichikawa, T., 1983, no. 9, p. 378. |
