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  1. By: Forsyth, Robert G. - Oldham, Michael J. - Schueler, Frederick W
    Type: Article
    In: Check list : journal of species lists and distribution
    Volume: 11
    Issue: 2
    Date: 2015-2-17
    Page Range: 1583--6
    Publication Info: [São Paulo, Brazil] Luís Felipe Toledo 2005-
    Subjects: Canada  Gastropoda  Geographic distribution  introduced species  Mollusca  Ontario  Polygyridae