| Toxolasma lividum |
Purple Liliput |
|
| Toxolasma parvum |
Lilliput |
|
| Triodopsis anteridon |
Carter Threetoothed Snail |
|
| Triodopsis burchi |
Pittsylvania Threetooth |
|
| Triodopsis fallax |
Mimic Threetooth |
|
| Triodopsis fradulenta |
Baffled Threetooth |
|
| Triodopsis hopetonensis |
Magnolia Threetooth |
|
| Triodopsis juxtidens |
Atlantic Threetooth |
|
| Triodopsis juxtidens robinae |
Brush Creek Threetooth |
|
| Triodopsis messana |
Pinhole Threetooth |
|
| Triodopsis pendula |
Hanging Rock Threetoothed Delicate Vertigo |
|
| Triodopsis picea |
Spruce Knob Threetooth |
High |
| Triodopsis platysayoides |
Cheat Threetooth |
High |
| Triodopsis rugosa |
Buttressed Threetooth |
Very High |
| Triodopsis sp. 1 |
|
|
| Triodopsis tennesseensis |
Budded Threetooth |
|
| Triodopsis tridentata |
Northern Threetooth |
|
| Triodopsis vulgata |
Dished Threetooth |
|
| Truncilla donaciformis |
Fawnsfoot |
|
| Truncilla truncata |
Deertoe |
|
| Uniomerus carolinianus |
Florida Pondhorn |
|
| Uniomerus tetralasmus |
Pondhorn |
|
| Utterbackia imbecillis |
Paper Pondshell |
|
| Vallonia costata |
Costate Vallonia |
|
| Vallonia excentrica |
Iroquois Vallonia |
|
| Vallonia parvula |
Trumpet Vallonia |
|
| Vallonia perspectiva |
Thin-lip Vallonia |
|
| Valvata lewisi |
Fringed Valvata |
|
| Valvata sincera |
Mossy Valvata |
|
| Valvata tricarinata |
Three-ridge Valvata |
|
| Ventridens acerra |
Glossy Dome |
|
| Ventridens arcellus |
Golden Dome |
|
| Ventridens coelaxis |
Bidentate Dome |
High |
| Ventridens collisella |
Sculptured Dome |
|
| Ventridens decussatus |
Crossed Dome |
|
| Ventridens intertextus |
Pyramid Dome |
|
| Ventridens lasmodon |
Hollow Dome |
|
| Ventridens lawae |
Rounded Dome |
|
| Ventridens pilsbryi |
Yellow Dome |
|
| Ventridens suppressus |
Flat Dome |
|
| Ventridens virginicus |
Split-tooth Dome |
|
| Venustaconcha trabalis |
Tennessee Bean |
|
| Vertigo bollesiana |
Delicate Vertigo |
|
| Vertigo clappi |
Cupped Vertigo Snail |
Very High |
| Vertigo cristata |
Crested Vertigo |
|
| Vertigo elatior |
Tapered Vertigo |
|
| Vertigo malleata |
Malleated Vertigo |
|
| Vertigo milium |
Blade Vertigo |
|
| Vertigo morsei |
Six-whorl Vertigo |
|
| Vertigo oralis |
Palmetto Vertigo |
|