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Ferrissia hendersoni (Walker, 1925) Blackwater Ancylid |
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Laevapex fuscus (C.B. Adams, 1841) Dusky Ancylid |
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| From: An identification manual for the freshwater snails of Florida by Fred G. Thompson, University of Florida [http://www.flmnh.ufl.edu/malacology/fl-snail/snails1.htm] |
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