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  1. Opisthobranch newsletter.
    By: Long, Steven J.
    Publication info: Pismo Beach, Calif. [etc.]S.J. Long.
    Contributed by: Smithsonian Libraries
    BHL Collections: Academy of Natural Sciences Library and Archives
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  2. Opisthobranch.
    By: Bennett, Sally - Long, Steven J.
    Publication info: Phoenix, AZ :S.J. Long & S. Bennett,19 -1984.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
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  3. Shells and sea life.
    By: Long, Steven J.
    Publication info: Phoenix, AZ :Miranda Enterprises,
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
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