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- Share your observations
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Share your observations of plants or non-game animals with the Natural Heritage Inventory.
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 Wisconsin Natural Heritage Inventory
Many bird avoidance dates have changed, we are in the process of making these consistent across all documents, but for the most recent dates please go to the bird calendar. The bird calendar contains required (Avoidance Period) and recommended (Conservation Period) dates for avoiding impacts to rare Wisconsin birds when planning management or development activities.
| 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 | ||
| Gastrocopta procera | Wing Snaggletooth | G5 | S3 | THR | SGCN | Y | |
| Vallonia parvula | Trumpet Vallonia | G4 | S2 | SC/N | SGCN | Y | |
| Vitrina angelicae | Transparent Vitrine Snail | G5 | S1 | SC/N | SGCN | Y | |
| Acella haldemani | Spindle Lymnaea | G3 | SU | r-SIN | N | ||
| Helicodiscus singleyanus | Smooth Coil | G5 | S2 | SC/N | SGCN | Y | |
| Vertigo morsei | Six-whorl Vertigo | G3 | S1 | SC/N | SGCN | Y | |
| Glyphyalinia rhoadsi | Sculpted Glyph | G5 | S2 | SC/N | SGCN | Y | |
| Somatogyrus depressus | Sandbar Pebblesnail | G2 | SU | r-SIN | N | ||
| Striatura exigua | Ribbed Striate | G5 | S3 | SC/N | SGCN | Y | |
| Pseudosuccinea columella | Mimic Lymnaea | G5 | SU | r-SIN | N | ||
| Bulimnaea megasoma | Mammoth Lymnaea | G4G5 | SU | r-SIN | N | ||
| Aplexa elongata | Lance Aplexa | G5 | SU | r-SIN | N | ||
| Vertigo hubrichti | Hubricht's Vertigo | G3Q | S1 | END | SGCN | Y | |
| Valvata winnebagoensis | Flanged Valvata | G2? | SU | r-SIN | N | ||
| Strobilops affinis | Eightfold Pinecone | G4 | S3 | m-SIN | N | ||
| Planogyra asteriscus | Eastern Flat-whorl | G4G5 | S1 | SC/N | SGCN | Y | |
| Zonitoides limatulus | Dull Gloss | G4G5 | S1S2 | SC/N | SGCN | Y | |
| Planorbella truncata | Druid Rams-horn | G3G4 | SU | r-SIN | N | ||
| Discus patulus | Domed Disc | G5 | SU | r-SIN | N | ||
| Paravitrea multidentata | Dentate Supercoil | G5 | S2S3 | SC/N | SGCN | Y | |
| Vertigo nylanderi | Deep-throated Vertigo | G3G4 | S1S2 | SC/N | SGCN | Y | |
| Vertigo modesta | Cross Vertigo | G5 | S1 | SC/N | SGCN | Y | |
| Hendersonia occulta | Cherrystone Drop | G4 | S2S3 | THR | SGCN | Y | |
| Philomycus carolinianus | Carolina Mantleslug | G5 | SU | r-SIN | N | ||
| Strobilops aeneus | Bronze Pinecone | G5 | S1 | SC/N | SGCN | Y | |
| Allogona profunda | Broad-banded Forestsnail | G5 | S2 | SC/N | SGCN | Y | |
| Guppya sterkii | Brilliant Granule | G5 | S2S3 | SC/N | SGCN | Y | |
| Glyphyalinia wheatleyi | Bright Glyph | G5 | S1 | SC/N | SGCN | Y | |
| Zoogenetes harpa | Boreal Top | G5 | S1 | SC/N | SGCN | Y | |
| Striatura ferrea | Black Striate | G5 | S2 | SC/N | SGCN | Y | |
| Cochlicopa morseana | Appalachian Pillar | G5 | S2 | 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.
