Ancilla okawai Yokoyama, 1923
| 1923. | Ancilla okawai Yokoyama, 1923 Syntype |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Olividae: |
| Geologic Time: | Cenozoic: |
| Yokoyama, M., 1923b: Tertiary Mollusca from Dainichi in Totomi. Journal of the College of Science, Imperial University of Tokyo, vol. 45, art. 2, pp. 1–18, pls. 1–2. (Reference No. 0468) |
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| Ichikawa, T., 1983, no. 9, p. 292. |
