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 rhombostomus 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
• Ferrissia fragilis Tryon 1863 - fragile ancylid (limpet)
• Ferrissia 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 - rorpulent 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 - tadpole 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 Chamberlain and Berry 1930 - Fish Lake physa (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 winnipegensis Pip 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) ^[1]

Discidae

• Anguispira alternata (Say, 1816) ^[1]
• Anguispira jessica Kutchka, 1938 ^[1]
• Anguispira kochi (L. Pfeiffer, 1846) ^[1]
• Anguispira nimapuna H.B. Baker, 1932 ^[1]
• Anguispira strongyloides (Pfeiffer, 1854) ^[1]
• Discus nigrimontanus (Pilsbry, 1924) ^[1]
• Discus patulus (Deshayes, 1830) ^[1]

Helicodiscidae

• Helicodiscus barri Hubricht, 1962 ^[1]
• Helicodiscus parallelus (Say, 1821) ^[1]

Oreohelicidae

• Oreohelix idahoensis (Hemphill, 1890) ^[1]
• Oreohelix strigosa depressa Pilsbry, 1904 ^[1]
• Oreohelix vortex S.S. Berry, 1932 ^[1]

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. ^[2]

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 including 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

See also

• United States Fish and Wildlife Service list of endangered species

Lists of molluscs of surrounding countries:

• List of non-marine molluscs of Canada
• List of non-marine molluscs of Mexico
• List of non-marine molluscs of Cuba

References

1. Rodrigo B. Salvador, Fred J. Brook, Lara D. Shepherd, Martyn Kennedy (2020). "Molecular phylogenetic analysis of Punctoidea (Gastropoda, Stylommatophora)". Zoosystematics and Evolution 96(2): 397-410.
2. U.S. Fish & Wildlife Service (2009). Endangered Species Bulletin 34(3): 31.

External links

• Federally listed gastropods (include one marine)
• Federally listed bivalves

• States

• uark.edu: Arkansas
• Walker B. 1899. The terrestrial Mollusca of Michigan. 27 pp.
• '"Ecology of Northern Michigan" —Anootated list of the molluscs of the Porcupine Mountains and Isle Royale, Michigan; pages 93-99; Walker B. & Ruthven A. G. 1906.
• nhp.nris.mt.gov: Montana
• fieldguide.mt.go: Gastropoda fieldguide to Montana
• carnegiemnh.org: Pennsylvania - land gastropods
• Southern Illinois - land gastropods
• Kathryn E. Perez. (last edited September 12, 2006) Land Snail List for Texas.
• Utah
• at http://www.dgif.virginia.gov/wildlife/publications/ Special Status Faunal Species in Virginia
• Official List of Virginia Native and Naturalized Species
• dnr.wi.gov: Wisconsin
• Williams, J. D., Bogan, A. E., Butler, R. S., Cummings, K. S., Garner, J. T., Harris, J. L., ... & Watters, G. T. (2017). "A Revised List of the Freshwater Mussels (Mollusca: Bivalvia: Unionida) of the United States and Canada". Freshwater Mollusk Biology and Conservation 20: 33-58.