# List of non-marine molluscs of the United States

The non-marine mollusks of the United States are a part of the molluscan fauna of the United States.

## Freshwater gastropods
### Amnicolidae

* Amnicola cora Hubricht 1979 - Foushee Cavesnail
* Amnicola dalli Pilsbry and Beecher 1892 - Peninsula Amnicola
* Amnicola decisus Haldeman 1845
* Amnicola limosus Say 1817 - Mud Amnicola
* Ammicola rhombostoma Thompson 1968 - Squaremouth Amnicola
* Amnicola stygius Hubricht 1971 -Stygian Amnicola
* Colligyrus convexus Hershler, Fresh, Liu, and Johannes 2003 - Canary dusky-snail
* Colligyrus depressus Hershler 1999 - Harney Basin Duskysnail
* Colligyrus greggi Pilsbry 1935 - Rocky Mountain Duskysnail
* Dasyscias franzi Thompson and Hersler 1991 - Shaggy Ghostsnail
* Lyogyrus bakerianus Pilsbry 1917 - Baker's Springsnail
* Lyogyrus browni Carpenter 1872 - Slender Duskysnail
* Lyogyrus granum Say 1822 -Squat Duskysnail
* Lyogyrus latus Thompson and Hershler 1991 - cobble Sprite
* Lyogyrus pilsbryi Walker 1906 - Lake Duskysnail
* Lyogyrus pupoideus Gould 1841 - Pupa Duskysnail
* Lyogyrus retromargo Thompson 1968 - Indented Duskysnail
* Lyogyrus walkeri Pilsbry 1898 - Canadian Duskysnail

### Pleuroceridae

* Lithasia armigera - armigerous river snail or armored rocksnail
* Lithasia curta) - knobby rocksnail
* Lithasia duttoniana - Dutton's river snail
* Lithasia geniculata - geniculate river snail
* Lithasia jayana - Jay's river snail
* Lithasia lima - Elk River file snail
* Lithasia salebrosa - muddy rocksnail
* Lithasia verrucosa varicose rocksnail

### Hydrobiidae

* Tryonia alamosae - Alamosa springsnail
* Marstonia pachyta - armored marstonia - synonym: Pyrgulopsis pachyta
* Pyrgulopsis erythropoma - Ash Meadows pebblesnail
* Somatogyrus humerosus - atlas pebblesnail

### Planorbidae

* Amphigyra alabamensis Pilsbry 1906 Shoal Sprite
* Biomphalaria havanensis Pfeiffer 1839 - Ghost Ramshorn
* Ferrisia fragilis Tryon 1863 - Fragile Ancylid (limpet)
* Ferrisia rivularis Say 1817 - Creeping Ancylid (limpet)
* Gyraulus circumstriatus Tryon 1866 - Disc Gyro
* Gyraulus crista Linnaeus 1758 - Star Gyro
* Gyraulus deflectus Say 1824 - Flexed Gyro
* Gyraulus hornensis Baker 1934 - Tuba Gyro
* Gyraulus parvus Say 1817 - Ash Gyro
* Gyraulus vermicularis Gould 1847 - Pacific Coast Gyro
* Hebetancylus excentricus Morelet 1851 - Excentric Ancylid (limpet)
* Helisoma anceps Menke 1830 -Two-ridge Ramshorn
* Helisoma minus Cooper 1870
* Helisoma newberryi Lea 1858 Great Basin Ramshorn
* Laevapex fuscus Adams 1841 -Dusky Ancylid
* Menetus dilatatus Gould 1841 - Bugle Sprite
* Menetus opercularis Gould 1847 - Button Sprite
* Micromenetus brogniartianus Lea 1842 - Disc Sprite
* Micromenetus floridensis Baker 1945 - Penny Sprite
* Micromenetus sampsoni Ancey 1885 - Sampson Sprite
* Neoplanorbis carinatus Walker 1908 - Carinate Flat-top Snail
* Neoplanorbis smithi Walker 1908 - Angled Flat-top Snail
* Neoplanorbis tantillus Pilsbry 1906 - Little Flat-top Snail
* Neoplanorbis umbilicatus Walker 1908 - Umbilicate Flat-top Snail
* Pecosorbis kansasensis Berry 1966 - New Mexico Ramshorn
* Planorbella ammon Gould 1855 - Jupiter Ramshorn
* Planorbella binneyi Tryon 1867 - Coarse Ramshorn
* Planorbella campanulata Say 1821 - Bellmouth Ramshorn
* Planorbella columbiensis Baker 1945 - Caribou Ramshorn
* Planorbella corpulenta Say 1824 - Corpulent Ramshorn
* Planorbella duryi Wetherby 1879 - Seminole Ramshorn
* Planorbella magnifica Pilsbry 1903 - Magnificent Ramshorn
* Planorbella multivolvis Case 1847 - Acorn Ramshorn
* Planorbella occidentalis Cooper 1870 - Fine-lined Ramshorn
* Planorbella oregonensis Tryon 1865 - Lamb Ramshorn
* Planorbella pilsbryi Baker 1926 - File Ramshorn
* Planorbella scalaris Jay 1839 - Mesa Ramshorn
* Planorbella subcrenata Carpenter 1857 - Rough Ramshorn
* Planorbella tenuis Dunker 1850 - Mexican Ramshorn
* Planorbella traski Lea 1856 - Keeled Ramshorn
* Planorbella trivolvis Say 1817 - Marsh Ramshorn
* Planorbella truncata Miles 1861 - Druid Ramshorn
* Planorbula armigera Say 1821 - Thicklip Ramshorn
* Planorbula campestris Dawson 1875 - Meadow Ramshorn
* Promenetus exacuous Say 1821 - Sharp Sprite
* Promenetus umbillicatellus Cockerell 1887 - Thicklip Ramshorn
* Rhodacmea cahawbensis Walker 1917 - Cahaba Ancylid
* Rhodacmea elatior Anthony 1855 - Domed Ancylid
* Rhodacmea filosa Conrad 1834 - Wicker Ancylid
* Rhodacmea hinkleyi Walker 1908 - Knobby Ancylid
* Vorticifex effusa Lea 1856 - Artemesian Ramshorn
* Vorticifex solida Dall 1870 -

### Physidae

* Aplexa elongata Say 1821 -Lance Aplexa
* Archiphysa ashmuni Taylor 2003 - San Rafael Physa
* Archiphysa sonomae Taylor 2003 - Sonoma Physa
* Laurentiphysa chippuvarum Taylor 2003 - Chippewa Physa
* Physa carolinae Wethington, Dillon, Wise 2009 - Carolina Physa
* Physa jennessi Dall 1919 - Obtuse Physa
* Physa megalochlamys Taylor 1988 - Cloaked Physa
* Physa natricina Taylor 1988 - Snake River Physa
* Physa sibirica Westerlund 1876 - Frigid Physa
* Physa skinneri Taylor 1954 - Glass Physa
* Physa vernalis Taylor and Jokinen 1984 - Vernal Physa
* Physella acuta
* Physella ancillaria Say 1825 - Pumpkin Physa
* Physella bermudezi Aguayo 1935 - Lowdome Physa
* Physella bottimeri Clench 1924 - Comanche Physa
* Physella boucardi Cross and Fischer 1881 - Desert Physa
* Physella columbiana Hemphill 1890 - Rotund Physa
* Physella conoidea Fischer and Crosse 1886 - Texas Physa
* Physella cooperi Tryon 1865 - Olive Physa
* Physella costata Newcomb 1861 - Ornate Physa
* Physella cubensis Pfeiffer 1839 - Carib Physa
* Physella globosa Haldeman 1841 - Globose Physa
* Physella gyrina Say 1821 - Tadpole Physa
* Physella gyrina propinqua Tryon 1865 - Rocky Mountain Physa
* Physella gyrina utahensis Clench 1925- Physa
* Physella hemphilli Taylor 2003 - Idaho Physa
* Physella hendersoni Clench 1925 - Bayou Physa
* Physella heterostropha Say 1817 - Pewter Physa
* Physella hordacea Lea 1864 - Grain Physa
* Physella humerosa Gould 1855 - Corkscrew Physa
* Physella integra Haldeman 1841 - Ashy Physa
* Physella johnsoni Clench 1926 - Banff Springs Physa
* Physella lordi Baird 1863 - Twisted Physa
* Physella magnalacustris Walker 1901 - Great Lakes Physa
* Physella mexicana Phillippi 1841 - Polished Physa
* Physella microstriata — Fish Lake physaChamberlain and Berry 1930; U.S. endemic/extinct
* Physella natricina — Snake River physa snail
* Physella osculans Haldeman 1841 - Cayuse Physa
* Physella parkeri Currier 1881 - Broadshoulder Physa
* Physella pomilla Conrad 1834 - Claiborne Physa
* Physella spelunca Turner and Clench 1974 - Cave Physa
* Physella squalida Morelet 1851 - Squalid Physa
* Physella traski Lea 1864 - Sculpted Physa
* Physella vinosa Gould 1847 - Banded Physa
* Physella virgata Gould 1855 - Protean Physa
* Physella virginea Gould 1847 - Sunset Physa
* Physella winnipegensisPip 2004 - Lake Winnipeg Physa
* Physella wrighti Te and Clark 1985- Hotwater Physa
* Physella zionis Pilsbry 1926 - Wet-rock Physa

### Lymnaeidae

* Stagnicola bonnevillensis
* Stagnicola utahensis — Thickshell pondsnail

## Land gastropods

Land gastropods in the USA include:
Charopidae
* Radiodomus abietum (H.B. Baker, 1930)
Discidae
* Anguispira alternata (Say, 1816)
* Anguispira jessica Kutchka, 1938
* Anguispira kochi (L. Pfeiffer, 1846)
* Anguispira nimapuna H.B. Baker, 1932
* Anguispira strongyloides (Pfeiffer, 1854)
* Discus nigrimontanus (Pilsbry, 1924)
* Discus patulus (Deshayes, 1830)
Helicodiscidae
* Helicodiscus barri Hubricht, 1962
* Helicodiscus parallelus (Say, 1821)
Oreohelicidae
* Oreohelix idahoensis (Hemphill, 1890)
* Oreohelix strigosa depressa Pilsbry, 1904
* Oreohelix vortex S.S. Berry, 1932

### Polygyridae

* Fumonelix archeri - Archer's toothed land snail
* Fumonelix jonesiana- big-tooth covert, Jones' middle-toothed land snail

### Punctidae

* Punctum pygmaeum
* Servanda alpina
* Servanda americana
* Servanda australis
* Servanda bakeri
* Servanda canadensis
* Servanda decora
* Servanda larvata
* Servanda lugubris
* Servanda maculata
* Servanda nebulosa
* Servanda regalis
* Servanda robusta
* Servanda rustica

## Freshwater bivalves
### Unionidae

* Quadrula — many species
** Quadrula apiculata — Southern mapleleaf
** Quadrula aurea — Golden orb
** Quadrula tuberosa — Rough rockshell (extinct)

## Federally endangered or threatened
### Federally endangered or threatened freshwater molluscs

There are 34 freshwater gastropod taxa on this list. The only marine endangered gastropod is Haliotis sorenseni. The only overseas endangered land snail is Papustyla pulcherrima. Altogether 36 gastropod species are federally listed as of 2 October 2009.
| Scientific name | Common name | Home range | status |
| Alasmidonta heterodon | Dwarf wedgemussel | Connecticut, Delaware, District of Columbia, Massachusetts, Maryland, North Carolina, New Hampshire, New Jersey, New York, Pennsylvania, Virginia, Vermont | E |
| Antrobia culveri | Tumbling creek cavesnail | Missouri | E |
| Assiminea pecos | Pecos Assiminea snail | New Mexico, Texas, Mexico (in salt marshes) | E |
| Athearnia anthonyi | Anthony's riversnail | Alabama, Tennessee | E |
| Campeloma decampi | Slender campeloma | Alabama | E |
| Elimia crenatella | Lacy elimia | Alabama | T |
| Epioblasma obliquata | Purple catspaw | Ohio, Kentucky, Tennessee | E |
| Epioblasma perobliqua | White catspaw | Ohio, Michigan, Indiana | E |
| Erinna newcombi | Newcomb's snail | Hawaii | T |
| Idaholanx fresti | Banbury Springs lanx | Idaho | E |
| Juturnia kosteri/Tryonia kosteri | Koster's springsnail/Koster's tryonia | New Mexico | E |
| Leptoxis ampla | Round rocksnail | Alabama | T |
| Leptoxis plicata | Plicate rocksnail | Alabama | E |
| Leptoxis taeniata | Painted rocksnail | Alabama | T |
| Lepyrium showalteri | Flat pebblesnail | Alabama | E |
| Lioplax cyclostomatiformis | Cylindrical lioplax | Alabama | E |
| Marstonia ogmoraphe (listed as Pyrgulopsis ogmorhaphe) | Royal marstonia | Tennessee | E |
| Marstonia pachyta (listed as Pyrgulopsis pachyta) | Armored marstonia | Alabama | E |
| Physa natricina | Snake river physa snail | Idaho | E |
| Physella spelunca | Cave physa | U.S. endemic, caves | V |
| Physella utahensis | Utah physa | Utah; U.S. endemic | V |
| Physella zionis | Wet rock physa | Zion National Park, Utah; U.S. endemic | V |
| Pyrgulopsis bruneauensis | Bruneau Hot Springsnail | Idaho | E |
| Pyrgulopsis neomexicana | Socorro springsnail | New Mexico | E |
| Pyrgulopsis roswellensis | Roswell springsnail | New Mexico | E |
| Quadrula asperata | Alabama orb freshwater mussel | Alabama region; U.S. endemic | NT |
| Quadrula couchiana | Rio Grande monkeyface freshwater mussel | Rio Grande region; U.S. endemic | CE |
| Quadrula cylindrica | Rabbitsfoot freshwater mussel | U.S. endemic | V |
| Quadrula fragosa | Winged Mapleleaf freshwater mussel | Wisconsin, Minnesota, and Missouri; U.S. endemic | CE |
| Quadrula houstonensis | Smooth pimpleback freshwater mussel | Texas region; U.S. endemic | CE |
| Quadrula intermedia | Cumberland monkeyface pearly mussel | Appalachia region: western Virginia + eastern Tennessee | CE |
| Quadrula metanevra | Monkeyface freshwater mussel | Southeastern United States | NE |
| Quadrula pustulosa | Pimpleback freshwater mussel | Southeastern United States | NE |
| Quadrula quadrula | Mapleleaf freshwater mussel | northern Eastern United States + Eastern Canada | LC |
| Quadrula refulgens | Purple pimpleback freshwater mussel | U.S. endemic | NT |
| Quadrula rumphiana | Ridged mapleleaf freshwater mussel | U.S. endemic | NT |
| Quadrula sparsa | Appalachian monkey-face pearly mussel | Appalachia region: western Virginia + eastern Tennessee | CE |
| Quadrula stapes | Stirrup shell | Alabama + Mississippi; U.S. endemic | CE — Extinct |
| Stagnicola utahensis | Thickshell pondsnail | Utah Lake, Utah; U.S. endemic | CE |
| Taylorconcha serpenticola | Bliss Rapids snail | Idaho | T |
| Tryonia alamosae | Alamosa springsnail | New Mexico | E |
| Tulotoma magnifica | Alabama Live-bearing snail | Alabama | E |
| Valvata utahensis | Utah roundmouth snail | Idaho, extirpaded from Utah | E |

### Federally endangered or threatened land gastropods

| Common name | Scientific name | Home range | status |
| Oʻahu tree snails | Achatinella spp. | Hawaii | E |
| Painted snake-coiled forest snail | Anguispira picta | Tennessee | T |
| Iowa Pleistocene snail | Discus macclintocki | Illinois, Iowa | E |
| Morro Shoulderband snail | Helminthoglypta walkeriana | California | E |
| Magazine Mountain shagreen | Mesodon magazinensis | Arkansas | T |
| Chittenango ovate amber snail | Novisuccinea chittenangoensis | New York | T |
| Stock Island tree snail | Orthalicus reses (not include O. r. nesodryas) | Florida | T |
| Kanab Ambersnail | Oxyloma haydeni kanabensis | Arizona, Utah | E |
| Noonday globe | Patera clarki nantahala | North Carolina | T |
| Virginia fringed mountain snail | Polygyriscus virginianus | Virginia | E |
| Flat-spired three-toothed snail | Triodopsis platysayoides | West Virginia | T |