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  1. By: Academy of Natural Sciences of Philadelphia. Department of Mollusks - Academy of Natural Sciences of Philadelphia. Department of Mollusks - Delaware Museum of Natural History.
    Publication info: Greenville, Del., etc, Delaware Museum of Natural History, etc,
    Holding Institution: Smithsonian Libraries
  2. By: Bailey-Matthews Shell Museum - American Malacologists, Inc. - Delaware Museum of Natural History.
    Publication info: Melbourne, Fla., etc, American Malacologists, inc., etc,
    Holding Institution: Multiple institutions
  3. By: Delaware Museum of Natural History.
    Publication info: [Greenville], Delaware Museum of Natural History,
    Holding Institution: Smithsonian Libraries