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- Cretaceous Cephalopoda from the Hokkaido. Part 1. Lytoceras, Gaudryceras and Tetragonites.
- Journal of the College of Science, Imperial University of Tokyo, vol. 18, art. 2, pp. 1–55, pls. 1–7.
- Cretaceous Cephalopoda from the Hokkaido. Part 2. Turrilites, Helicoceras, Heteroceras, Nipponites, Olcostephanus, Desmoceras, Hauericeras, and an undetermined genus.
- Journal of the College of Science, Imperial University of Tokyo, vol. 20, art. 2, pp. 1–45, pls. 1–6.
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