Ostrea irregularis Tokunaga, 1906
| 1906. | Ostrea irregularis Tokunaga, 1906 Holotype Tokunaga, S. 1906 p. 68, pl. 4, fig. 7a, b |
| Condition: | Missing |
| Taxonomy: | Mollusca: Bivalvia: Ostreidae: |
| Geologic Time: | Cenozoic: Pleistocene: |
| Tokunaga, S., 1906: Fossils from the environs of Tokyo. Journal of the College of Science, Imperial University of Tokyo, vol. 21, art. 2, pp. 1–96, pls. 1–6. (Reference No. 0443) |
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| Ichikawa, T., 1983, no. 9, p. 227. |
