Mollusks Copyright Randall Schietzelt & Harper College Asian Clam Corbicula fluminea Introduced Species Filterfeeder Chinese Mystery Snail Cipangopaludina chinensis Herbivore Introduced species Fingernail Clam Sphaerium species Filter feed Mild pollution indicator species Fingernail Clam Sphaerium species Filter feed Mild pollution indicator species Giant Floater Pyganodon grandisFilter feeder Mild pollution indicator species Giant Floater Pyganodon grandisFilter feeder Mild pollution indicator species Land Snail Haplotrema concavum Herbivore Introduced species Land Snail Haplotrema concavum Herbivore Introduced species Land Snail Haplotrema concavum Herbivore Introduced species Land Snail, Pupoides marginatus Herbivore Land Snail Succinea retusa Herbivore Land Snail Succinea retusa Herbivore Land Snail Succinea retusa Herbivore Left-handed Snail Physa species Herbivore Polluted water indicator species Left-handed Snail Physa species Herbivore Polluted water indicator species Left-handed Snail Physa species Herbivore Polluted water indicator species Paper Pondshell Utterbackia imbecillis Filter feeder Clean water indicator species Pointed Winkle Snail Campeloma decisum Herbivore Mild pollution indicator species Pond Snail Campeloma decisum Herbivore Pond Snail Lymnaea species Herbivore & Scavenger Moderate pollution indicator species Pond Snail Viviparous sp. Clean Water Indicator Ramshorn Snail Gyraulus deflectus Herbivore Mild pollution indicator species Ramshorn Snail Gyraulus species Herbivore Mild pollution indicator species Ramshorn Snail Gyraulus species Herbivore Mild pollution indicator species Ramshorn Snail Gyraulus species Herbivore Mild pollution indicator species Ramshorn Snail Heliosoma trivolvis Herbivore Mild pollution indicator species Ramshorn Snail Planorbid species Herbivore Mild pollution indicator species Slug Deroceras agreste Herbivore Slug Deroceras agreste Herbivore Slug Deroceras agreste Herbivore Slug Philomycus carolinianus Herbivore Slug Philomycus carolinianus Herbivore Snail scat Snail Eggs Zebra Mussels Dreissena polymorpha Filter feeder Introduced species in Chicagoland area

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