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  1. By: Rang, Sander, - Férussac, A. E. d'Audebard de (André Étienne), baron de,
    Publication info: Paris, F. Didot, 1828
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Aplysia  Classification  Gastropoda  Identification  
  2. By: Jordan, H. J. (Hermann Jacques),
    Publication info: 1901
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Animal locomotion  Aplysia  Mollusks  physiology