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- Trigonucula (nov.) and other taxodont pelecypods from the Upper Triassic of the Sakawa basin in Shikoku, Japan.
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- Sakawanella, new genus, and some other pelecypods from the Upper Triassic Kochigatani group in the Sakawa basin, Shikoku, Japan.
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- Ichikawa, K., 1951a:
- Actinodontophora, nov. and other Permian Mollusca from Katsura in Sakawa basin, Shikoku, southwest Japan.
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- Ichikawa, K., 1951b:
- Notes on the Entomonotis-bearing Triassic formation at Iwai near Itsukaichi, Tokyo Prefecture with a description of a new Entomonotis.
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- Triassic Mollusca from the Arai formation at Iwai near Itsukaichi, Tokyo Prefecture.
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- Early Neo-Triassic pelecypods from Iwai, near Itsukaichi, Tokyo Prefecture.
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- Late Triassic pelecypods from the Kochigatani group in the Sakuradani and Kito areas, Tokushima Prefecture, Shikoku, Japan. - Part 1.
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- Late Triassic pelecypods from the Kochigatani group in the Sakuradani and Kito areas, Tokushima Prefecture, Shikoku, Japan. - Part 2.
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- Ichikawa, K., 1963:
- A survey of the fossils from Japan illustrated in classical monographs. Part 4. Edmund Mojsisovics von Mojsvár (1888): Über einige japanische Trias-fossilien.
- Palaeontological Society of Japan, 25th Anniversary Volume, pp. 9–11, pls. 17–20.
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- Ichikawa, K. and Maeda, Y., 1958:
- Late Cretaceous pelecypods from the Izumi group Part 2. Orders Taxodontida, Prionodontida, Dysodontida, Desmodontida and Adapedontida.
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- Ikebe, N., 1936:
- Pleistocene Shell Bed of Toyonari, Tiba Prefecture, (Resume), with Descriptions of Two New Species of Odostomia and a Note on Arcopagia (Merisca) serricostata (Tokunaga).
- Venus, vol. 6, no. 4, pp. 189–205. (in Japanese with English description)
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- Formation of organic sheets in the inner shell layer of Geloina (Bivalvia: Corbiculidae): an adaptive response to shell dissolution.
- The Veliger, vol. 36, no. 2, pp. 166–173.
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- Ontogenetic changes in boring behavior by the rock-boring bivalve, Barnea manilensis (Pholadidae).
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- The Pleistocene macaque from the Tokai district, Japan - Morphological consideration mainly from the tooth-size.
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- Iwasaki, Y., 1963:
- Pseudamiantis, a pelecypod genus.
- Transactions and Proceedings of the Palaeontological Society of Japan. New Series, no. 51, pp. 91–101, pls. 14–15.
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- Iwasaki, Y., 1963:
- Pseudamiantis, a pelecypod genus.
- Transactions and Proceedings of the Palaeontological Society of Japan. New Series, no. 51, pp. 91–101, pls. 14–15.
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- The Shiobara-type molluscan fauna. An ecological analysis of fossil molluscs.
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