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Home >> Checklist: Terrestrial Mollusca of Illinois >> Previous version of Key >> Identification Key (new version): Terrestrial Mollusca of Illinois Filter/Display Options Family/Genus Filter: Sort by: Display Common Names Display images: Terrestrial Mollusca of Illinois Illinois Natural History Survey Species Count: 135 Arionidae Arion intermedius Arion subfuscus Bulimulidae Rabdotus dealbatus Carychiidae Carychium exiguum Carychium exile Cochlicopidae Cochlicopa lubrica Cochlicopa lubricella Cochlicopa morseana Cochlicopa nitens Discidae Anguispira alternata Anguispira kochi Anguispira strongyloides Discus macclintocki Discus patulus Discus shimekii Discus whitneyi Haplotrematidae Haplotrema concavum Helicarionidae Euconulus chersinus Euconulus dentatus Euconulus fulvus Euconulus polygyratus Euconulus trochulus Guppya sterkii Helicinidae Hendersonia occulta Helicodiscidae Helicodiscus inermis Helicodiscus notius Helicodiscus parallelus Helicodiscus shimeki Helicodiscus singleyanus Limacidae Deroceras laeve Deroceras reticulatum Lehmannia valentiana Limax maximus Philomycidae Megapallifera mutabilis Megapallifera ragsdalei Pallifera dorsalis Pallifera fosteri Pallifera marmorea Philomycus carolinianus Polygyridae Allogona profunda Daedalochila leporina Euchemotrema fraternum Euchemotrema hubrichti Euchemotrema leai Inflectarius edentatus Inflectarius inflectus Mesodon clausus Mesodon elevatus Mesodon thyroidus Mesodon zaletus Millerelix dorfeuilliana Neohelix albolabris Neohelix alleni Neohelix divesta Patera appressa Patera pennsylvanica Stenotrema barbatum Stenotrema hirsutum Stenotrema stenotrema Triodopsis discoidea Triodopsis fradulenta Triodopsis tridentata Triodopsis vulgata Webbhelix multilineata Xolotrema denotatum Xolotrema fosteri Xolotrema obstrictum Pomatiopsidae Pomatiopsis cincinnatiensis Pomatiopsis lapidaria Punctidae Punctum minutissimum Punctum smithi Punctum vitreum Pupillidae Columella columella Columella edentula Columella simplex Gastrocopta abbreviata Gastrocopta armifera Gastrocopta contracta Gastrocopta corticaria Gastrocopta holzingeri Gastrocopta pentodon Gastrocopta procera Gastrocopta similis Gastrocopta tappaniana Pupilla muscorum Pupoides albilabris Vertigo elatior Vertigo gouldi Vertigo meramecensis Vertigo milium Vertigo modesta Vertigo morsei Vertigo ovata Vertigo tridentata Vertigo ventricosa Strobilopsidae Strobilops aeneus Strobilops affinis Strobilops labyrinthicus Succineidae Catinella parallela Catinella vermeta Novisuccinea chittenangoensis Novisuccinea ovalis Oxyloma deprimidum Oxyloma peoriense Oxyloma retusum Oxyloma salleanum Succinea forsheyi Valloniidae Planogyra asteriscus Vallonia costata Vallonia excentrica Vallonia gracilicosta Vallonia parvula Vallonia perspectiva Vallonia pulchella Zonitidae Glyphyalinia indentata Glyphyalinia rhoadsi Glyphyalinia wheatleyi Hawaiia alachuana Hawaiia minuscula Mesomphix cupreus Mesomphix friabilis Mesomphix globosus Mesomphix perlaevis Mesomphix vulgatus Nesovitrea electrina Paravitrea capsella Paravitrea significans Striatura meridionalis Striatura milium Ventridens demissus Ventridens ligera Ventridens virginicus Zonitoides arboreus Zonitoides limatulus Zonitoides nitidus
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