| Viviparidae |
Campeloma decisum decisum
24.5 mm |
Campeloma decisum crassulum
41.4 mm |
Campeloma decisum decampi
32.9 mm |
Viviparus georgianus
25.0 mm | 
Viviparus intertextus
23.7 mm | 
Viviparus subpurpureus
22.2 mm |
| 
Lioplax subcarinata
14.3 mm | |
| Pleuroceridae |
Lithasia armigera armigera
28.8 mm | 
Lithasia armigera jayana
28.9 mm | 
Lithasia armigera duttoniana
23.3 mm |
Lithasia geniculata geniculata
18.3 mm | 
Lithasia geniculata fuliginosa
21.5 mm | 
Lithasia geniculata pinguis
15.2 mm |
Io fluvialis
41.1 mm | 
Lithasia verrucosa
20.0 mm | 
Leptoxis crassa
19.6 mm |
Leptoxis praerosa praerosa
12.1 mm |
Leptoxis praerosa umbilicata
10.4 mm |
Leptoxis carinata
13.3 mm |
Pleurocera clavaeformis clavaeformis
24.0 mm |
Pleurocera clavaeformis unciale
21.7 mm |
Pleurocera troostiana troostiana
20.7 mm |
Pleurocera troostiana perstriata
19.0 mm | 
Pleurocera troostiana edgariana
18.4 mm | 
Pleurocera troostiana lyonii
23.9 mm |
Pleurocera canaliculata canaliculata
38.0 mm |
Pleurocera canaliculata pyrenellum
24.8 mm |
Pleurocera proxima
17.7 mm |
Pleurocera nassula
16.7 mm | 
Pleurocera catenaria catenaria
17.4 mm | 
Pleurocera modesta
15.9 mm |
Pleurocera simplex ebenum
15.6 mm |
Pleurocera simplex simplex
17.6 mm |
Pleurocera gabbiana
14.4 mm |
Pleurocera laqueata
19.4 mm
|
Pleurocera laqueata alveare
19.6 mm |
Pleurocera semicarinata semicarinata
17.8 mm
|
| Pomatiopsidae |
Pomatiopsis cincinnatiensis
5.2 mm |
|
Pomatiopsis lapidaria
5.7 mm |
| Hydrobioids |
Amnicola limosa
3.8mm |
Lyogyrus granum
2.6 mm |
Birgella subglobosa
7.7 mm |
Cincinnatia integra
4.5 mm | | 
Probythinella emarginata
3.1 mm |
Somatogyrus currierianus currierianus
4.4 mm | 
Somatogyrus currierianus umbilicata
3.9 mm | 
Somatogyrus virginicus
3.6 mm |
Marstonia arga
2.2 mm |
Marstonia pachyta pachyta
3.0 mm |
Marstonia pachyta angulobasis
2.4 mm |
Marstonia olivacea
3.9 mm | 
Marstonia scalariformis
3.2 mm | 
Holsingeria unthanksensis
3.7 mm |
Fontigens nickliniana
3.6 mm |
Fontigens orolibas
3.1 mm |
Fontigens sp. #1
2.4 mm |
| Lymnaeidae |
Lymnea columella
10.4 mm |
Lymnaea humilis
5.9 mm |
Lymnaea cubensis/viator
7.4 mm |
| Physidae |
Physa acuta
8.3 mm |
Physa pomilia
6.7 mm |
Physa gyrina
11.5 mm |
| Planorbidae |
Helisoma trivolvis
18.5 mm |
Helisoma anceps
8.4 mm |
Planorbula armigera
7.1 mm |
Gyraulus parvus
2.9 mm |
|
Menetus dilatatus
2.4 mm |
| Ancylidae |
Ferrissia rivularis
4.5 mm |
Ferrissia fragilis
3.1 mm |
Laevapex fuscus
5.9 mm |
