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A slug of the genus Veronicella from Guatemala
Vol 27, Page 1, Date 1913
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A Philomycus from the Republic of Panama
Vol 27, Page 2, Date 1913
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The Zoölogical Station at Naples
Vol 27, Page 4, Date 1913
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Notes on post-glacial Mollusca. I. Emmet County, Michigan
Vol 27, Page 7, Date 1913
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Concerning Cypraea exanthema, cervus and cervinetta
Vol 27, Page 8, Date 1913
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Urocoptis (Arangia) sowerbyana (Pfr.) - A note on its radula
Vol 27, Page 11, Date 1913
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The Zoölogical Station at Naples (concluded)
Vol 27, Page 16, Date 1913
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The Unione fauna of the Great Lakes
Vol 27, Page 18, Date 1913
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Shell collecting on the West Coast of Baja California
Vol 27, Page 25, Date 1913
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The Unione fauna of the Great Lakes (continued)
Vol 27, Page 29, Date 1913
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Some Wyoming snails
Vol 27, Page 37, Date 1913
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Two new Achatinellidae of Oahu
Vol 27, Page 39, Date 1913
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The Unione fauna of the Great Lakes (continued)
Vol 27, Page 40, Date 1913
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Note on a new variety of Epiph[r]agmophora tudiculata
Vol 27, Page 49, Date 1913
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Notes on some oreohelices from Wyoming
Vol 27, Page 50, Date 1913
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The generic name to be used for Murex tritonis Linne
Vol 27, Page 55, Date 1913
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The Unione fauna of the Great Lakes (continued)
Vol 27, Page 56, Date 1913
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Further notes on Helix hortensis in New England
Vol 27, Page 61, Date 1913
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Land shells collected on the Bimini Islands, Gun and Cat Cays, Bahamas
Vol 27, Page 63, Date 1913
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Cerion (Strophiops) biminiense sp. nov
Vol 27, Page 64, Date 1913
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New species of Clausilia and Partula from the collection of Mr. J. S. Emerson
Vol 27, Page 65, Date 1913
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A new sinistral Amastra
Vol 27, Page 68, Date 1913
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On Cyprea miliaris Gmel., with descriptions of new varieties
Vol 27, Page 69, Date 1913
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Notes on Thracia conradi
Vol 27, Page 73, Date 1913
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Gundlachia hjalmarsoni Pfr. in the Rio Grande, Texas
Vol 27, Page 77, Date 1913
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On the nomenclature of Drupa
Vol 27, Page 79, Date 1913
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Two new species of Parreysia from Kamerun, Africa
Vol 27, Page 85, Date 1913
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A new genus of Trochidae
Vol 27, Page 86, Date 1913
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Studies in Najades
Vol 27, Page 88, Date 1913
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Spring collecting in southwest Virginia (concluded)
Vol 27, Page 91, Date 1913
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List of land shells from Swan Island, with descriptions of five new species
Vol 27, Page 97, Date 1914
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Notes on Miocene correlation
Vol 27, Page 101, Date 1914
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Note on Clementia obliqua Jukes-Browne
Vol 27, Page 103, Date 1914
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Northern Idaho shells
Vol 27, Page 104, Date 1914
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Camps in the Catalinas and White Mountains of Arizona, with Description of a new American land shell
Vol 27, Page 109, Date 1914
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Physa heterostropha Say in Europe
Vol 27, Page 112, Date 1914
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Notes on the Ancylidae of North Africa
Vol 27, Page 113, Date 1914
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Notes on some West American pectens
Vol 27, Page 121, Date 1914
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A new Sonorella from the Grand Canyon, Arizona
Vol 27, Page 122, Date 1914
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Notes on the Ancylidae of North Africa (concluded)
Vol 27, Page 124, Date 1914
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Union of the Wabash and Maumee drainage systems
Vol 27, Page 131, Date 1914
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A new Cuban land operculate
Vol 27, Page 133, Date 1914
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Notes
Vol 27, Page 134, Date 1914
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Cuban collecting; San Diego de los Banos
Vol 27, Page 136, Date 1914
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Distribution of some fresh water shells of the St. Johns River Valley in Maine, New Brunswick and Quebec
Vol 27, Page 139, Date 1914