Pleurotoma ( Drillia ) principalis Pilsbry
| 1906. | Pleurotoma (Drillia) principalis Pilsbry Tokunaga, S. 1906 p. 14, pl. 1, fig. 23 |
| Condition: | Missing |
| Taxonomy: | Mollusca: Gastropoda: Turridae: |
| Geologic Time: | Cenozoic: |
| 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) |
  |
| Ichikawa, T., 1983, no. 9, p. 223. |
