DOI: http://dx.doi.org/10.15560/11.2.1583

Patera appressa (Say, 1821), an introduced land snail in Ontario, Canada (Mollusca: Gastropoda: Polygyridae)

Robert G. Forsyth, Michael J. Oldham, Frederick W. Schueler

Abstract


The geographic distribution and habitat of Patera appressa (Say, 1821) in Canada are described. This is a North American land snail native to the southern Appalachians but it has been known, since 1994, from a cluster of sites in Trenton, City of Quinte West, Ontario, where it is presumably introduced. It may no longer be extant at any of the known Ontario sites.


Keywords


introduced species; geographic distribution; Mollusca; Gastropoda; Polygyridae; Ontario; Canada

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References


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