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Share your observations

Share your observations of plants or non-game animals with the Natural Heritage Inventory.

Rare animals
Find rare and non-game animals.
Rare plants
Learn about plants on the Natural Heritage Working List.
Rare lichens
Discover Wisconsin's lichens.
Natural communities
Explore Wisconsin's natural communities.
Other features
Discover unique resources.
Eagle license plate

Help care for rare plants and animals by ordering an Endangered Resources plate.

Contact information
For information on Wisconsin's rare animals, contact:
Rich Staffen
Conservation Biologist
608-266-4340

Wisconsin's rare aquatic and terrestrial snails

Aquatic and terrestrial snails on Wisconsin's Natural Heritage Working List – last revised May 2016. Life history, where they are found in the state, photos and management information is available for many of these species. Please consider sharing your observations [exit DNR] with the NHI Program.

Click on the table headings to sort the table or sort taxonomically. Choose a species from the list to explore information for that animal. View the table key.
Scientific Name Common Name Global
Rank
State
Rank
Federal
Status
WI
Status
WWAP Mapped in NHI
Stagnicola caperata Wrinkled Marshsnail G5 SU r-SIN N
Somatogyrus depressus Sandbar Pebblesnail G2 SU r-SIN N
Pseudosuccinea columella Mimic Lymnaea G5 SU r-SIN N
Planorbella truncata Druid Rams-horn G3G4 SU r-SIN N
Philomycus carolinianus Carolina Mantleslug G5 SU r-SIN N
Discus patulus Domed Disc G5 SU r-SIN N
Bulimnaea megasoma Mammoth Lymnaea G4G5 SU r-SIN N
Aplexa elongata Lance Aplexa G5 SU r-SIN N
Valvata winnebagoensis Flanged Valvata G2 SU r-SIN N
Acella haldemani Spindle Lymnaea G3 SU r-SIN N
Strobilops affinis Eightfold Pinecone G4 S3 m-SIN N
Striatura exigua Ribbed Striate G5 S3 SC/N SGCN Y
Gastrocopta procera Wing Snaggletooth G5 S3 THR SGCN Y
Paravitrea multidentata Dentate Supercoil G5 S2S3 SC/N SGCN Y
Hendersonia occulta Cherrystone Drop G4 S2S3 THR SGCN Y
Guppya sterkii Brilliant Granule G5 S2S3 SC/N SGCN Y
Vallonia parvula Trumpet Vallonia G4 S2 SC/N SGCN Y
Striatura ferrea Black Striate G5 S2 SC/N SGCN Y
Helicodiscus singleyanus Smooth Coil G5 S2 SC/N SGCN Y
Glyphyalinia rhoadsi Sculpted Glyph G5 S2 SC/N SGCN Y
Cochlicopa morseana Appalachian Pillar G5 S2 SC/N SGCN Y
Allogona profunda Broad-banded Forestsnail G5 S2 SC/N SGCN Y
Zonitoides limatulus Dull Gloss G4G5 S1S2 SC/N SGCN Y
Vertigo nylanderi Deep-throated Vertigo G3G4 S1S2 SC/N SGCN Y
Zoogenetes harpa Boreal Top G5 S1 SC/N SGCN Y
Vitrina angelicae Transparent Vitrine Snail G5 S1 SC/N SGCN Y
Vertigo morsei Six-whorl Vertigo G3 S1 SC/N SGCN Y
Vertigo modesta Cross Vertigo G5 S1 SC/N SGCN Y
Vertigo hubrichti Hubricht's Vertigo G3Q S1 END SGCN Y
Strobilops aeneus Bronze Pinecone G5 S1 SC/N SGCN Y
Planogyra asteriscus Eastern Flat-whorl G4 S1 SC/N SGCN Y
Glyphyalinia wheatleyi Bright Glyph G5 S1 SC/N SGCN Y

Rank and status: To learn more about species rank and status, see the working list key. WWAP: (Wisconsin Wildlife Action Plan): SGCN (Species of Greatest Conservation Need) and monitoring and ranking SIN (Species with Information Needs). Mapped in NHI: (Natural Heritage Inventory): Y = Observations of these species are mapped into the NHI database.

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Last revised: Wednesday, February 07, 2018