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R. I.  Johnson, ?The Recent Mollusca of Augustus Addison Gould: Illustrations of the types described by Gould with a bibliography and catalog of his species?, Smithsonian Institution, United States National Museum. Bulletin, vol. 239, 1964.

T.  Habe, Shells of the Western Pacific in color, 1st ed., vol. 2. Osaka: Hoikusha Publishing Co., Ltd., 1964.

K. H.  Barnard, ?Contributions to the knowledge of South African marine Mollusca. Part 5. Lamellibranchiata?, Annals of the South African Museum, vol. 47, pp. 361-593, 1964.

R. I.  Johnson, ?The Recent Mollusca of Augustus Addison Gould: Illustrations of the types described by Gould with a bibliography and catalog of his species?, Smithsonian Institution, United States National Museum. Bulletin, vol. 239, 1964.

I. K.  Kawakami and Yasuzumi, G., ?Electron microscope studies on the mantle of the pearl oyster Pinctada martensii Dunker. Preliminary report. The fine structure of the periostracum fixed with permanganate?, Journal of Electron Microscopy, vol. 13, pp. 119-123, 1964.