| Helicodiscus barri
Hubricht, 1962 |
Raccoon coil |
Troglobiont |
G3G4 |
AL, GA, TN |
Appalachians, Interior Low Plateau |
| Helicodiscus fimbriatus
Wetherby, 1881 |
Fringed Coil |
Trogloxene |
G4 |
AL |
|
| Helicodiscus hadenoecus
Hubricht, 1962 |
Cricket Coil |
Troglophile |
|
AL, KY, TN |
|
| Helicodiscus inermis
H. B. Baker, 1929 |
|
Troglophile |
|
AL |
|
| Helicodiscus multidens
Hubricht, 1962 |
Twilight Coil |
Troglophile |
G3 |
TN |
|
| Helicodiscus notius
Hubricht, 1962 |
Tight Coil |
Troglophile |
G5 |
AL, GA, IL, KY, MO, TN |
|
| Helicodiscus notius specus
Hubricht, 1962 |
Hollow Coil |
Troglobiont |
G2 |
AL, GA, IL, KY, MO, TN |
Appalachians, Interior Low Plateau |
| Helicodiscus parallelus
(Say, 1821) |
Compound Coil |
Troglophile |
G5 |
GA, TN |
|
| Helicodiscus punctatellus
J. P. E. Morrison, 1942 |
|
Troglophile |
|
KY |
|
| Helicodiscus shimeki
Hubricht, 1962 |
Temperate Coil |
Trogloxene |
G5 |
|
|