Pseudoperissolax yokoyamai Suzuki & Ito, 1946
| 1960. | Pseudoperissolax yokoyamai Suzuki & Ito, 1946 Holotype Oyama, K. et al. 1960 p. 76, pl. 15, fig. 2b |
| 1957. | Pseudoperissolax cf. blakei (Conrad) Makiyama, J. 1957 pl. 2, fig. 7 |
| 1911. | Fusus sp. Yokoyama, M. 1911b p. 10, pl. 2, fig. 7 |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: |
| Geologic Time: | Cenozoic: Eocene: |
| Horizon: | Manda group: |
| Makiyama, J., 1957: Matajiro Yokoyama's Tertiary fossils from various localities in Japan. Part 1. Palaeontological Society of Japan, Special Papers, no. 3, pp. 1–4, pls. 1–24. (Reference No. 0367) |
| Oyama, K., Mizuno, A. and Sakamoto, T., 1960: Illustrated handbook of Japanese Paleogene molluscs., pp. 1–244, pls. 1–71. Geological Survey of Japan. (Reference No. 0412) |
| Yokoyama, M., 1911b: Some Tertiary fossils from the Miike coal-field. Journal of the College of Science, Imperial University of Tokyo, vol. 27, art. 20, pp. 1–16, pls. 1–3. (Reference No. 0461) |
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| Ichikawa, T., 1983, no. 9, p. 156. |
| Ichikawa, T., 1983, no. 9, p. 38. |
| Ichikawa, T., 1983, no. 9, p. 250. |
