| Scientific Name | Author | English Name |
|---|---|---|
| Stenophysa maugeriae | (Gray, 1837) | Tawny aplexa |
| Stenophysa marmorata | (Guilding, 1828) | Marbled aplexa |
| Physella zionis | (Pilsbry, 1926) | Wet-rock physa |
| Physella wrighti | Te & Clarke, 1985 | Hotwater physa |
| Physella virginea | (Gould, 1847) | Sunset physa |
| Physella virgata | (Gould, 1855) | Protean physa |
| Physella vinosa | (Gould, 1847) | Banded physa |
| Physella utahensis | (Clench, 1925) | Utah physa |
| Physella traski | (Lea, 1864) | Sculpted physa |
| Physella squalida | (Morelet, 1851) | Squalid physa |
| Physella spelunca | (Turner & Clench, 1974) | Cave physa |
| Physella propinqua | (Tryon, 1865) | Rocky mountain physa |
| Physella parkeri | (Currier, 1881) | Broadshoulder physa |
| Physella osculans | (Haldeman, 1841) | Cayuse physa |
| Physella microstriata | (Chamberlin & Berry, 1930) | Fish lake physa |
| Physella mexicana | (Philippi, 1841) | Polished physa |
| Physella magnalacustris | (Walker, 1901) | Great lakes physa |
| Physella lordi | (Baird, 1863) | Twisted physa |
| Physella johnsoni | (Clench, 1926) | Striate physa |
| Physella integra | (Haldeman, 1841) | Ashy physa |
| Physella humerosa | (Gould, 1855) | Corkscrew physa |
| Physella heterostropha | (Say, 1817) | Pewter physa |
| Physella hordacea | (Lea, 1864) | Grain physa |
| Physella hendersoni | (Clench, 1925) | Bayou physa |
| Physella gyrina | (Say, 1821) | Tadpole physa |
| Physella globosa | (Haldeman, 1841) | Globose physa |
| Physella costata | (Newcomb, 1861) | Ornate physa |
| Physella cubensis | (Pfeiffer, 1839) | Carib physa |
| Physella cooperi | (Tryon, 1865) | Olive physa |
| Physella conoidea | (Fischer & Crosse, 1886) | Texas physa |
| Physella columbiana | (Hemphill, 1890) | Rotund physa |
| Physella boucardi | (Crosse & Fischer, 1881) | Desert physa |
| Physella bottimeri | (Clench, 1924) | Comanche physa |
| Physella bermudezi | (Aguayo, 1935) | Lowdome physa |
| Physella ancillaria | (Say, 1825) | Pumpkin physa |
| Physella acuta | (Draparnaud, 1805) | European physa |
| Physa vernalis | Taylor & Jokinen, 1984 | Vernal physa |
| Physa skinneri | Taylor, 1954 | Glass physa |
| Physa siberica | Westerlund, 1876 | Frigid physa |
| Physa natricina | Taylor, 1988 | Snake river physa |
| Physa peruviana | Gray, 1828 | |
| Physa megalochlamys | Taylor, 1988 | Cloaked physa |
| Physa jennessi | Dall, 1919 | Obtuse physa |
| Physa fontinalis | (Linnaeus, 1758) | Common European tadpole snail |
| Aplexa elongata | (Say, 1821) | Lance Aplexa |