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  1. Heude's molluscan types : or, Asian land and fresh water mollusks, mostly from the People's Republic of China, described by P. M. Heude /
    By: Johnson, Richard Irwin, - Heude, P. M.,
    Publication info: Cambridge, Mass. :Dept. of Mollusks, Museum of Comparative Zoology, Harvard University,1973.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
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  2. Lea's Unionid types : or, Recent and fossil taxa of Unionacea and Mutelacea introduced by Isaac Lea, including the location of all the extant types /
    By: Johnson, Richard Irwin,
    Publication info: Cambridge, Mass. :Dept. of Mollusks, Museum of Comparative Zoology, Harvard University,1974.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
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  3. Marshall's Unionid types : or, Types of Recent and fossil Unionacea and Mutelacea introduced by William B. Marshall, including a bibliography of all his writings on mollusks /
    By: Johnson, Richard Irwin,
    Publication info: Cambridge, Mass. :Dept. of Mollusks, Museum of Comparative Zoology, Harvard University,1974.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
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  4. Simpson's Unionid types and miscellaneous Unionid types in the National Museum of Natural History /
    By: Johnson, Richard Irwin,
    Publication info: Cambridge, Mass. :Dept. of Mollusks, Museum of Comparative Zoology, Harvard University,1975.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
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