basis of recordInvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Etymology Named for the collector, Mr. A. M. Harper. [details] Type locality Fresh-water marl from a swamp at the south end of Lake Panasoffkee, [Florida], six feet below present surface. [details]
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