FMCS Gastropod Status and Distribution

Committee Chairs: Nathan Whelan and Jeremy Tiemann

CLICK HERE TO JOIN FMCS AND THIS COMMITTEE

You can also download a searchable PDF of the document below by clicking here.

Appendix 1. The 2012 AFS list of freshwater gastropods from Canada and the United States. Column headings are taxon (binomen) and species author(s), AFS common names (Classification Uncertain denotes uncertain taxonomic status under common names), AFS status, NatureServe G-Ranks, and Federal status (Canada and the United States), and distribution (alphabetic listing of states and provinces in which species are believed to occur). Bold family names are followed by the number of genera and species (or monotypic). Status abbreviations are U=Unknown; CS=Currently Stable; V=Vulnerable; T=Threatened; E=Endangered; X=Extinct; Xp=Possibly Extinct; GU=Unrankable; G5=Secure; G4=Apparently Secure; G3=Vulnerable; G2=Imperiled; G1=Critically Imperiled, GH=Possibly Extinct, GX=Extinct. Fedral statuses: E=Endangered (Canada and the United States); T=Threatened, C=Candidate (United States only).
Species Author AFS Common Name AFS Status G-Rank Federal Distribution
Family Acroloxidae 1 Genus 1 Species
Acroloxus coloradensis (Henderson, 1930) Rocky Mountain Capshell V G3 CO, MT. Canada, AB, BC, ON, QC.
Family Lymnaeidae 9 Genera 61 Species
Acella haldemani (Binney, 1867) Spindle Lymnaea V G3 IL, MI, MN, NY, OH, VT, WI. Canada, ON, QC.
Bulimnaea megasoma (Say, 1824) Mammoth Lymnaea CS G4G5 IA, MI, MN, NY, OH, VT, WI. Canada, MB, ON, QC.
Erinna aulacospira (Ancey, 1899) Hawaiian Bugle Xp GH HI
Erinna newcombi Adams and Adams, 1855 Newcomb's Bugle E G1 T HI
Fisherola nuttalli (Haldeman, 1841) Shortface Lanx T G2 ID, MT, OR, UT, WA, WY. Canada, BC.
Galba alberta Baker, 1919 Alberta Fossaria E G1Q Canada, AB.
Galba bulimoides (Lea, 1841) Prairie Fossaria CS G5 AR, CA, CO, ID, KS, MN, MO, MT, NE, OR, SD, TX, UT, WA. Canada, AB, BC, MB, SK.
Galba cockerelli (Pilsbry and Ferriss, 1906) Classification Uncertain V G3G4Q AZ, ID, NE, NM, SD, TX, WA. Canada, AB, BC.
Galba cubensis (Pfeiffer, 1839) Carib Fossaria CS G5 AL, CA, FL, GA, LA, MS, NC, NM, SC, TX
Galba cyclostoma (Walker, 1808) Bugle Fossaria Xp GH MI, NY
Galba dalli (Baker, 1907) Dusky Fossaria CS G5 AZ, IL, IN, KS, MI, MN, MO, MT, ND, NE, NY, OH, PA, SD, TX, VA, WI, WV, WY. Canada, AB, BC, MB, ON, SK.
Galba exigua (Lea, 1841) Graceful Fossaria CS G5Q AL, CT, IA, ID, IL, IN, KY, MA, ME, MI, MN, MO, NY, OH, OR, PA, TN, VA, WA, WI, WV. Canada, MB, ON, QC.
Galba galbana (Say, 1825) Boreal Fossaria CS G5 CT, ME, MI. Canada, AB, BC, MB, NT, NU, ON, QC, SK.
Galba humilis (Say, 1822) Marsh Fossaria CS G5 KY, MD, ME, MO, NC, NJ, NY, OH, PA, SC, VA. Canada, ON, QC, PE.
Galba modicella (Say, 1825) Rock Fossaria CS G5 AK, AL, AZ, CA, CT, FL, IA, ID, IL, IN, LA, MA, MD, ME, MI, MN, MO, MS, MT, ND, NE, NH, NM, NV, NY, OH, OK, OR, PA, RI, SD, TN, TX, UT, VT, WA, WI, WV, WY. Canada, AB, BC, MB, NB, NS, NT, NU, ON, PE, QC, SK, YT.
Galba obrussa (Say, 1825) Golden Fossaria CS G5 AK, AL, AR, AZ, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY. Canada, AB, MB, NF, NS, NT, SK.
Galba parva (Lea, 1841) Pygmy Fossaria CS G5 AZ, CO, CT, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MT, ND, NE, NM, NV, NY, OH, OK, PA, SD, TN, TX, UT, VA, WI, WY. Canada, AB, BC, MB, NT, NU, ON, QC, SK.
Galba peninsulae (Walker, 1908) Classification Uncertain CS G5Q ME, MI, WI
Galba perplexa (Baker and Henderson, 1929) Classification Uncertain E G1G2Q CA, WA
Galba perpolita (Dall, 1905) Glossy Fossaria Xp GH AK
Galba rustica (Lea, 1841) Rusty Fossaria CS G5Q CO, CT, IL, IN, KS, MA, ME, MI, MO, NE, NM, NY, PA, UT, VT, WV. Canada, AB, MB, NS, NT, NU, ON, SK.
Galba sonomaensis (Hemphill, 1906) Sonoma Fossaria T G2Q CA
Galba tazewelliana (Wolf, 1870) Tazwell Fossaria Xp GH IA, IL
Galba techella (Haldeman, 1867) Classification Uncertain V G3G4Q AR, AZ, CA, KS, LA, MO, NE, NM, NV, OK, TX, UT. Canada, AB, BC.
Galba truncatula (Muller, 1774) Attenuate Fossaria CS G5 AK. Canada, BC, YT.
Galba vancouverensis (Baker, 1939) Classification Uncertain Xp GHQ WA. Canada, BC.
Lanx alta (Tryon, 1865) Highcap Lanx T G2 CA, OR
Lanx klamathensis Hannibal, 1912 Scale Lanx E G1 CA, OR
Lanx patelloides (Lea, 1856) Kneecap Lanx E G1 CA
Lanx subrotunda (Tryon, 1865) Rotund Lanx T G2 OR
Lanx sp. Banbury Springs Limpet E G1 E ID
Lymnaea atkaensis Dall, 1884 Frigid Lymnaea CS G4G5 AK. Canada, BC, NT, YT.
Lymnaea producta (Mighels, 1845) Classification Uncertain V G3 HI
Lymnaea rubella Lea, 1841 Aloha Lymnea Xp GH HI
Lymnaea stagnalis (Linnaeus, 1758) Swamp Lymnaea CS G5 AK, CA, CO, IA, ID, IL, IN, KY, ME, MI, MN, MT, ND, NY, OH, OR, PA, SD, UT, VT, WA, WI. Canada, AB, BC, LB, MB, NB, NF, NT, NU, ON, QC, SK, YT.
Pseudosuccinea columella (Say, 1817) Mimic Lymnaea CS G5 AL, AR, AZ, CA, CT, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, TN, TX, VA, VT, WA, WI, WV, WY. Canada, AB, BC, MB, NB, NS, ON, QC.
Stagnicola apicina (Lea, 1838) Abbreviate Pondsnail CS G5 ID, MI, MN, MT, ND, OR, SD, WA, WI, WY. Canada, BC, ON.
Stagnicola arctica (Lea, 1864) Arctic Pondsnail CS G5 AK. Canada, AB, BC, LB, MB, NF, NT, NU, ON, QC, SK, YT.
Stagnicola bonnevillensis (Call, 1884) Fat-Whorled Pondsnail E G1 C UT, WY
Stagnicola caperata (Say, 1829) Wrinkled Marshsnail CS G5 AK, AL, CA, CO, IA, ID, IL, IN, MA, MD, ME, MN, MO, MT, ND, NE, NM, NV, NY, OH, OR, PA, SD, TX, UT, WA, WI, WV, WY. Canada, AB, BC, MB, ON, SK, YT.
Stagnicola catascopium (Say, 1817) Woodland Pondsnail CS G5 CT, IA, IL, IN, MA, MD, ME, MI, MN, MT, ND, NH, NJ, NY, OH, OR, PA, RI, SD, VT, WA, WI, WY. Canada, AB, BC, MB, NB, NT, NS, ON, PE, QC, SK.
Stagnicola contracta (Currier, 1881) Deepwater Pondsnail E G1 MI
Stagnicola elodes (Say, 1821) Marsh Pondsnail CS G5 AK, CA, CO, CT, IA ID, IL, IN, KY, KS, MA, ME, MI, MN, MO, MT, NE, ND, NH, NM, NJ, NY, OH, OR, PA, RI, SD, UT, VT, WA, WI, WY. Canada, AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT.
Stagnicola elrodi Baker and Henderson, 1933 Flathead Pondsnail E G1Q MT
Stagnicola elrodiana Baker, 1935 Longmouth Pondsnail E G1Q MT
Stagnicola emarginata (Say, 1821) St. Lawrence Pondsnail CS G5 IA, ME, MI, MN, NH, NY, NT, OH, PA, VT, WI. Canada, NB, ON, QC.
Stagnicola exilis (Lea, 1834) Flat-Whorled Pondsnail CS G5 IA, IL, IN, KS, MI, MN, OH, WI. Canada, AB, MB, ON, QC, SK.
Stagnicola gabbi (Tryon, 1865) Striate Pondsnail E G1 CA
Stagnicola hinkleyi (Baker, 1906) Rustic Pondsnail T G2 ID
Stagnicola idahoensis (Henderson, 1931) Shortspire Pondsnail E G1 ID
Stagnicola kennicotti Baker, 1933 Western Arctic Pondsnail T G2 Canada, NT, NU.
Stagnicola mighelsi (Binney, 1865) Bigmouth Pondsnail E G1G2 ME
Stagnicola montanensis (Baker, 1913) Mountain Marshsnail V G3 ID, MT, NV, UT, WY. Canada, AB, BC.
Stagnicola neopalustris (Baker, 1911) Piedmont Pondsnail Xp GH VA
Stagnicola oronoensis (Baker, 1904) Obese Pondsnail T G2G3 ME. Canada, ON.
Stagnicola petoskeyensis (Walker, 1908) Petosky Pondsnail Xp GH MI
Stagnicola pilsbryi (Hemphill, 1890) Fish Springs Marshsnail X GX UT
Stagnicola traski (Tryon, 1863) Widelip Pondsnail V G3 CA, ID, MT, OR, UT, WA, WY. Canada, AB, BC.
Stagnicola utahensis (Call, 1884) Thickshell Pondsnail X GX UT
Stagnicola walkeriana Baker, 1926 Calabash Pondsnail CS G4 IL, IN, MI, MN, WI. Canada, ON.
Stagnicola woodruffi (Baker, 1901) Coldwater Pondsnail T G2G3 IL, IN, MI, MN, NY, WI. Canada, MB, ON.
Family Physidae 5 Genera 47 Species
Aplexa elongata (Say, 1821) Lance Aplexa CS G5 AK, CO, CT, DC, IA, ID, IL, IN, MA, MD, ME, MI, MN, MT, ND, NE, NH, NV, NY, OH, OR, PA, SD, UT, VA, VT, WA, WI, WY. Canada, AB, BC, MB, NB, NS, NT, NU, ON, PE, QC, SK, YT.
Archiphysa ashmuni Taylor, 2003 San Rafael Physa E G1 NM
Archiphysa sonomae Taylor, 2003 Sonoma Physa E G1 CA
Laurentiphysa chippuvarum Taylor, 2003 Chippewa Physa E G1 WI
Physa carolinae Wethington, Dillon, Wise, 2009 Carolina Physa CS G4 GA, NC, SC, VA
Physa jennessi Dall, 1919 Obtuse Physa CS G5 AK, ID, MN, MT, ND, WY. Canada, BC, MB, NT, NU, ON, QC, SK, YT.
Physa megalochlamys Taylor, 1988 Cloaked Physa V G3 CO, ID, MT, OR, UT, WA, WY. Canada, AB, BC, SK.
Physa natricina Taylor, 1988 Snake River Physa E G1 E ID
Physa sibirica Westerlund, 1876 Frigid Physa CS G4G5 AK. Canada, NT, YT.
Physa skinneri Taylor, 1954 Glass Physa CS G5 AK, CO, CT, IA, ID, IL, MA, MI, MN, MT, ND, NE, NV, NY, OH, PA, RI, SD, UT, WA, WI, WY. Canada, AB, BC, MB, NT, ON, QC, SK, YT.
Physa vernalis Taylor and Jokinen, 1984 Vernal Physa V G3 CT, MA, MI, NY, OH, PA, RI. Canada, ON, NF.
Physella ancillaria (Say, 1825) Pumpkin Physa CS G5Q CT, MA, ME, MI, MN, NH, NJ, NY,OH, PA, RI, VA, VT, WI, WY. Canada, NB, NF, QC.
Physella bermudezi (Aguayo, 1935) Lowdome Physa CS G4Q FL
Physella bottimeri (Clench, 1924) Comanche Physa V G3Q NM, OK, TX
Physella boucardi (Cross and Fischer, 1881) Desert Physa CS G5Q CA, NV
Physella columbiana (Hemphill, 1890) Rotund Physa T G2 MT, OR, WA, WY. Canada, BC.
Physella conoidea (Fischer and Crosse, 1886) Texas Physa V G3Q TX
Physella cooperi (Tryon, 1865) Olive Physa V G3 CA, ID, NV, OR, WA, WY
Physella costata (Newcomb, 1861) Ornate Physa E G1 CA
Physella cubensis (Pfeiffer, 1839) Carib Physa CS G5Q AL, FL, GA
Physella globosa (Haldeman, 1841) Globose Physa V G3Q KY, OH, TN
Physella gyrina (Say, 1821) Tadpole Physa CS G5 AK, AL, AR, AZ, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WY. Canada, AB, BC, MB, NT, NU, ON, QC, SK, YT.
Physella hemphilli Taylor, 2003 Idaho Physa E G1 ID
Physella hendersoni (Clench, 1925) Bayou Physa CS G5Q AL, FL, GA, MO, MS, NC, SC, TN, VA, WV
Physella heterostropha (Say, 1817) Pewter Physa CS G5Q AL, AR, CO, CT, FL, GA, IA, IL, IN, KS, KY, MA, MD, ME, MO, NC, NH, NJ, NY, OH, PA, RI, SC, TN, TX, VA, VT, WI, WV, WY. Canada, BC, NB, NF, NS, PE, QC.
Physella hordacea (Lea, 1864) Grain Physa E G1Q OR, WA. Canada, BC.
Physella humerosa (Gould, 1855) Corkscrew Physa V G3Q AZ, CA
Physella integra (Haldeman, 1841) Ashy Physa CS G5Q CO, IA, IL, IN, KY, MI, MN, ND, NY, OH, PA, SD, TN, TX, VT, WI, WV, WY. Canada, BC, MB, ON, QC.
Physella johnsoni (Clench, 1926) Banff Springs Physa E G1 E Canada, AB.
Physella lordi (Baird, 1863) Twisted Physa CS G5Q CA, ID, MI, MT, NV, OR, UT, WA, WI. Canada, BC.
Physella magnalacustris (Walker, 1901) Great Lakes Physa T G2Q ME, MI, WI. Canada, ON.
Physella mexicana (Philippi, 1841) Polished Physa CS G4Q AZ, ID, NM, OR, TX, UT.
Physella microstriata (Chamberlin and Berry, 1930) Fish Lake Physa X GX UT
Physella osculans (Haldeman, 1841) Cayuse Physa V G3Q AZ, CA, NV
Physella parkeri (Currier, 1881) Broadshoulder Physa T G2Q ME, MI, WI. Canada, ON, QC.
Physella pomilia Conrad, 1834 Claiborne Physa CS G5 AL, FL, GA, KS, KY, LA, MO, MS, NC, NE, SC, TN, VA, WV
Physella propinqua (Tryon, 1865) Rocky Mountain Physa CS G5Q CA, ID, MT, NV, OR, UT, WA, WY. Canada, BC.
Physella spelunca (Turner and Clench, 1974) Cave Physa E G1 WY
Physella squalida (Morelet, 1851) Squalid Physa CS G5Q TX
Physella traskii (Lea, 1864) Sculpted Physa T G2G3Q CA, OR
Physella utahensis (Clench, 1925) Utah Physa T G2Q CO, UT, WY
Physella vinosa (Gould, 1847) Banded Physa CS G5Q MI, MN, MT, NY, WI. Canada, ON.
Physella virgata (Gould, 1855) Protean Physa CS G5Q AR, AZ, CA, HI, IA, IL, KS, KY, LA, MN, MT, ND, NE, NM, NV, OK, SD, TX, UT, WI, WY
Physella virginea (Gould, 1847) Sunset Physa CS G4Q CA, ID, OR, WA. Canada, BC.
Physella winnipegensis Pip, 2004 Lake Winnipeg Physa E G1 Canada, MB.
Physella wrighti Te and Clarke, 1985 Hotwater Physa E G1 E Canada, BC.
Physella zionis (Pilsbry, 1926) Wet-rock Physa E G1 UT
Family Planorbidae 16 Genera 52 Species
Amphigyra alabamensis Pilsbry, 1906 Shoal Sprite X GX AL
Biomphalaria havanensis (Pfeiffer, 1839) Ghost Ramshorn CS G5 AZ, CA, FL, ID, LA, SC, TX
Ferrissia fragilis (Tryon, 1863) Fragile Ancylid CS G5 AL, AR, AZ, CA, CO, CT, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MO, MS, MT, NC, NE, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, VA, VT, WA, WI, WV, WY. Canada, AB, BC, ON, QC.
Ferrissia rivularis (Say, 1817) Creeping Ancylid CS G5 AL, AR, AZ, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY. Canada, AB, BC, MB, NB, NF, NS, ON, PE, QC, SK.
Gyraulus circumstriatus (Tryon, 1866) Disc Gyro CS G5 AZ, CA, CO, CT, ID, IN, KS, MA, MI, MN, MT, ND, NE, NH, NM, NY, OH, OR, PA, SD, UT, VT, WA, WI, WV, WY. Canada, AB, BC, MB, NB, NS, NT, ON, PE, QC, SK, YT.
Gyraulus crista (Linnaeus, 1758) Star Gyro CS G5 AK, CA, ID, ME, MI, MN, MT, ND, NM, NY, OR, VT, WA, WI, WY. Canada, AB, BC, MB, NT, ON, QC, SK.
Gyraulus deflectus (Say, 1824) Flexed Gyro CS G5 AK, CT, IA, ID, IL, IN, KY, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NY, OH, PA, SC, SD, VA, WA, WI, WY. Canada, AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT.
Gyraulus hornensis Baker, 1934 Tuba Gyro CS G4Q ND, WI. Canada, ON, QC, NT, SK.
Gyraulus parvus (Say, 1817) Ash Gyro CS G5 AK, AL, AR, AZ, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY. Canada, AB, BC, LB, MB, NB, NF, NT, NS, NU, ON, PE, QC, SK, YT.
Gyraulus vermicularis (Gould, 1847) Pacific Coast Gyro CS G4Q CA, ID, OR, WA. Canada, BC, YT.
Hebetancylus excentricus (Morelet, 1851) Excentric Ancylid CS G5 AL, FL, GA, LA, MS, NC, OK, SC, TX, VA
Helisoma anceps (Menke, 1830) Two-ridge Ramshorn CS G5 AK, AL, AR, AZ, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV, WY. Canada, AB, BC, MB, NB, NT, NS, ON, PE, QC, SK, NU.
Helisoma minus (Cooper, 1870) Classification Uncertain E G1Q CA
Helisoma newberryi (Lea, 1858) Great Basin Ramshorn E G1Q CA, ID, NV, OR, UT, WY
Laevapex fuscus (Adams, 1841) Dusky Acylid CS G5 AL, AR, CT, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MN, MO, MS, NC, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV. Canada, ON, QC.
Menetus opercularis (Gould, 1847) Button Sprite CS G5 AK, CA, ID, MT, OR, UT, WA. Canada, AB, BC.
Micromenetus brogniartianus (Lea, 1842) Disc Sprite CS G5Q AL, FL, MO, OH, VA
Micromenetus dilatatus (Gould, 1841) Bugle Sprite CS G5 AL, AR, CA, CT, FL, GA, IA, IL, IN, KY, LA, MA, MD, ME, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA WV. Canada, NS, ON.
Micromenetus floridensis (Baker, 1945) Penny Sprite CS G5 FL
Micromenetus sampsoni (Ancey, 1885) Sampson Sprite T G2G3Q AR, KY, MO, IL
Neoplanorbis carinatus Walker, 1908 Carinate Flat-top Snail X GX AL
Neoplanorbis smithi Walker, 1908 Angled Flat-top Snail X GX AL
Neoplanorbis tantillus Pilsbry, 1906 Little Flat-top Snail X GX AL
Neoplanorbis umbilicatus Walker, 1908 Umbilicate Flat-top Snail X GX AL
Pecosorbis kansasensis (Berry, 1966) New Mexico Ramshorn V G3 KS, NM
Planorbella ammon (Gould, 1855) Jupiter Ramshorn U GU CA, CO
Planorbella binneyi (Tryon, 1867) Coarse Ramshorn CS G4G5Q CA, OR, UT, WA. Canada, AB, BC.
Planorbella campanulata (Say, 1821) Bellmouth Ramshorn CS G5 CT, IA, IL, IN, MA, ME, MI, MN, ND, NY, OH, PA, VT, WI. Canada, MB, NB, NF, NS, ON, PE, QC, SK.
Planorbella columbiensis (Baker, 1945) Caribou Ramshorn Xp GH Canada, BC.
Planorbella corpulenta (Say, 1824) Corpulent Ramshorn T G2 MN. Canada, MB, ON.
Planorbella duryi (Wetherby, 1879) Seminole Ramshorn CS G5 CA, FL, HI, ID, NC, NM, WY
Planorbella magnifica (Pilsbry, 1903) Magnificent Ramshorn E G1 C NC
Planorbella multivolvis (Case, 1847) Acorn Ramshorn X GX MI
Planorbella occidentalis (Cooper, 1870) Fine-lined Ramshorn V G3 CA, OR, WA. Canada, BC.
Planorbella oregonensis (Tryon, 1865) Lamb Ramshorn E G1 OR, UT
Planorbella pilsbryi (Baker, 1926) File Ramshorn CS G4G5 MA, MI, MN, MT, ND, NY, OH, PA, WI. Canada, AB, MB, ON, NB, QC, SK.
Planorbella scalaris (Jay, 1839) Mesa Ramshorn CS G5 CO, FL, WY.
Planorbella subcrenata (Carpenter, 1857) Rough Ramshorn CS G5 AK, CA, CO, ID, MN, MO, MT, ND, NM, NV, OR, SD, UT, WA, WY. Canada, AB, BC, MB, NT, NU, ON, SK, YT.
Planorbella tenuis (Dunker, 1850) Mexican Ramshorn CS G5 AZ, CA, ID, NM, TX
Planorbella traski (Lea, 1856) Keeled Ramshorn X GX CA
Planorbella trivolvis (Say, 1817) Marsh Ramshorn CS G5 AK, AL, AR, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY. Canada, MB, NB, NF, NS, NU, ON, PE, QC, SK.
Planorbella truncata (Miles, 1861) Druid Ramshorn V G3G4 IA, IL, MI, WI
Planorbula armigera (Say, 1821) Thicklip Ramshorn CS G5 AL, AR, CT, FL, GA, IA, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, PA, RI, SC, SD, TN, VA, VT, WI. Canada, AB, BC, MB, NB, NT, NS, NU, ON, PE, QC, SK, YT.
Planorbula campestris (Dawson, 1875) Meadow Ramshorn CS G5 MT, ND, NM, SD, WY. Canada, AB, BC, MB, NT, ON, SK, YT.
Promenetus exacuous (Say, 1821) Sharp Sprite CS G5 AK, AR, AZ, CA, CO, CT, GA, IA, ID, IL, IN, KS, KY, MA, ME, MI, MN, MT, NC, ND, NE, NH, NM, NV, NY, OH, OK, OR, PA, SD, TN, TX, UT, VA, VT, WA, WI, WY. Canada, AB, BC, MB, NB, NT, NS, NU, ON, PE, QC, SK, YT.
Promenetus umbilicatellus (Cockerell, 1887) Umbilicate Sprite CS G4 AK, CA, CO, ID, IL, IN, KS, MN, MT, ND, NE, NM, NV, NY, OH, OK, OR, PA, SD, UT, WA, WI, WY. Canada, AB, BC, MB, ON, SK.
Rhodacmea cahawbensis (Walker, 1917) Cahaba Ancylid E G1 AL
Rhodacmea elatior (Anthony, 1855) Domed Ancylid E G1 KY, TN
Rhodacmea filosa (Conrad, 1834) Wicker Ancylid E G1 AL
Rhodacmea hinkleyi (Walker, 1908) Knobby Ancylid Xp GHQ AL, AR, IL, IN, KY, TN
Vorticifex effusa (Lea, 1856) Artemesian Ramshorn V G3 CA, ID, WA, OR
Vorticifex solida (Dall, 1870) Classification Uncertain Xp GHQ CA, NV
Family Neritidae 1 Genus 5 Species
Nertina cariosa (Wood, 1828) Pip'wai T G1G3 HI
Neritina clenchi Russel, 1940 Classification Uncertain CS G5Q FL
Nertina granosa Sowerby, 1825 Hihiwai E G1 HI
Neritina usnea (Roding, 1798) Olive Nerite CS G5 AL, FL, MS, LA, TX
Neritina vespertina Sowerby, 1849 Hapawai E G1G2 HI
Family Viviparidae 4 Genera 21 Species
Campeloma brevispirum Baker, 1928 Classification Uncertain CS G5Q WI
Campeloma crassulum Rafinesque, 1819 Ponderous Campeloma CS G5 AR, IA, IL, IN, KY, KS, MN, MO, NC, OH, TN, WI
Campeloma decampi (Binney, 1865) Slender Campeloma E G1 E AL
Campeloma decisum (Say, 1817) Pointed Campeloma CS G5 AL, AR, CT, GA, IA, IL, IN, KY, LA, MA, MD, ME, MI, MN, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV. Canada, MB, NB, NS, ON, QC.
Campeloma floridense Call, 1886 Purple-throat Campeloma CS G5 FL
Campeloma geniculum (Conrad, 1834) Ovate Campeloma CS G5 AL, FL, GA
Campeloma limum (Anthony, 1860) File Campeloma CS G5 FL, GA, NC, SC
Campeloma milesi (Lea, 1863) Classification Uncertain CS G5Q WI. Canada, ON.
Campeloma parthenum Vail, 1979 Maiden Campeloma CS G5 AL, FL
Campeloma regulare (Lea, 1841) Cylinder Campeloma CS G4 AL, GA, MS, TN
Campeloma rufum (Haldeman, 1841) Classification Uncertain CS G5Q CT, IA, IL, IN, KY, MA, ME, MI, MN, NY, OH, PA, VT, WI
Lioplax cyclostomaformis (Lea, 1841) Cylindrical Lioplax E G1 E AL, GA
Lioplax pilsbryi Walker, 1905 Choctaw Lioplax CS G5 AL, FL, GA
Lioplax subcarinata (Say, 1817) Ridgid Lioplax CS G4G5 MD, NC, NJ, NY, PA, SC, VA, WV
Lioplax sulculosa (Menke, 1827) Furrowed Lioplax CS G5 AL, AR, IA, IL, IN, KY, MN, MO, OH, TN, WI
Tulotoma magnifica (Conrad, 1834) Tulotoma T G2 T AL
Viviparus georgianus (Lea, 1834) Banded Mysterysnail CS G5 AL, AR, CT, FL, GA, IA, IL, IN, KY, LA, MA, MD, MI, MN, MO, MS, NC, NJ, NY, OH, PA, SC, TN, VA, VT, WI. Canada, ON, QC.
Viviparus goodrichi Archer, 1933 Globose Mysterysnail V G3G4 FL, GA
Viviparus intertextus (Say, 1829) Rotund Mysterysnail CS G4 AL, AR, FL, GA, IA, IL, KY, LA, MN, MO, MS, NC, SC, TN, TX, WI
Viviparus limi Pilsbry, 1918 Ochlockonee Mysterysnail V G3G4 FL, GA
Viviparus subpurpureus (Say, 1829) Olive Mysterysnail CS G5 AL, AR, IA, IL, IN, KY, LA, MO, MS, SC, TN, TX, WI
Family Ampullaridae 1 Genus 1 Species
Pomacea paludosa (Say, 1829) Florida Applesnail CS G5 AL, FL, GA, NC
Family Assiminidae 1 Genus 2 Species
Assiminea infima Berry, 1947 Badwater Snail E G1 CA
Assiminea pecos Taylor, 1987 Pecos Assiminea E G1 E NM, TX
Family Amnicolidae 4 Genera 18 Species
Amnicola cora Hubricht, 1979 Foushee Cavesnail E G1 AR
Amnicola dalli (Pilsbry and Beecher, 1892) Peninsula Amnicola CS G5 FL
Amnicola decisus Haldeman, 1845 Classification Uncertain E G1Q ME, NY, PA
Amnicola limosus (Say, 1817) Mud Amnicola CS G5 AL, AR, CO, CT, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, UT, VA, VT, WI, WY. Canada, AB, MB, NB, NS, ON, PE, QC, SK, LB, NF.
Amnicola rhombostoma Thompson, 1968 Squaremouth Amnicola Xp GH FL
Amnicola stygius Hubricht, 1971 Stygian Amnicola E G1 MO
Colligyrus convexus Hershler, Frest, Liu, and Johannes, 2003 Canary Duskysnail E G1G2 CA
Colligyrus depressus Hershler, 1999 Harney Basin Duskysnail E G1 OR
Colligyrus greggi (Pilsbry, 1935) Rocky Mountain Duskysnail CS G4 ID, MT, UT, WY. Canada, BC.
Dasyscias franzi Thompson and Hershler, 1991 Shaggy Ghostsnail E G1 FL
Lyogyrus bakerianus (Pilsbry, 1917) Baker's Springsnail Xp GH NY
Lyogyrus browni (Carpenter, 1872) Slender Duskysnail T G1G3Q MA, RI
Lyogyrus granum (Say, 1822) Squat Duskysnail CS G5 AL, CT, GA, MA, MD, MS, NC, NJ, NY, PA, SC, VA, VT. Canada, NB, NS.
Lyogyrus latus Thompson and Hershler, 1991 Cobble Sprite T G2 GA
Lyogyrus pilsbryi (Walker, 1906) Lake Duskysnail CS G4 IL, IN, OH, WI
Lyogyrus pupoideus (Gould, 1841) Pupa Duskysnail CS G5 CT, MA, ME, NY, PA, VT
Lyogyrus retromargo (Thompson, 1968) Indented Duskysnail CS G4 FL, GA, SC
Lyogyrus walkeri (Pilsbry, 1898) Canadian Duskysnail V G3G4 MI, MN, NY, OH, PA, VT, WI. Canada, QC, MB, ON.
Family Cochliopidae 14 Genera 48 Species
Antrobia culveri Hubricht, 1971 Tumbling Creek Cavesnail E G1 E MO
Antroselates spiralis Hubricht, 1963 Shaggy Cavesnail V G3 IN, KY
Aphaostracon asthenes Thompson, 1968 Blue Spring Hydrobe E G1 FL
Aphaostracon chalarogyrus Thompson, 1968 Freemouth Hydrobe E G1 FL
Aphaostracon hypohyalinum Thompson, 1968 Suwanee Hydrobe T G2 FL
Aphaostracon monas (Pilsbry, 1899) Wekiwa Hydrobe E G1 FL
Aphaostracon pachynotum Thompson, 1968 Thick-shelled Hydrobe V G3 FL
Aphaostracon pycnus Thompson, 1968 Dense Hydrobe E G1 FL
Aphaostracon rhadinum Thompson, 1968 Slough Hydrobe T G2 FL
Aphaostracon theiocrenetum Thompson, 1968 Clifton Spring Hydrobe E G1 FL
Aphaostracon xynoelictum Thompson, 1968 Fenney Spring Hydrobe E G1 FL
Balconorbis uvaldensis Hershler and Longley, 1986 Balcones Ghostsnail E G1G2 TX
Cochliopina riograndensis Pilsbry and Ferriss, 1906 Spiral Pebblesnail T G2G3 TX
Eremopyrgus eganensis Hershler, 1999 Steptoe Hydrobe E G1 NV
Ipnobius robustus (Hershler, 1989) Robust Tryonia E G1G2 CA
Juturnia kosteri (Taylor, 1987) Koster Springsnail T G2 E NM
Juturnia tularosae Hershler, Liu, and Stockwell, 2002 Tularosa Springsnail E G1 NM
Littoridinops monroensis (Frauenfeld, 1863) Cockscomb Hydrobe CS G5 AL, FL, GA, LA, MS, TX
Littoridinops palustris Thompson, 1968 Bantam Hydrobe V G3 AL, FL, MS
Littoridinops tenuipes (Couper, 1844) Henscomb Hydrobe CS G5 CT, FL, GA, MA, MD, NC, NJ, NY, SC, VA
Pseudotryonia adamantina (Taylor, 1987) Diamond Tryonia E G1 E NM, TX
Pseudotryonia alamosae (Taylor, 1987) Caliente Tryonia E G1 E NM, NV
Pseudotryonia brevissima (Pilsbry, 1890) Regal Hydrobe E G1 FL
Pseudotryonia grahamae Thompson, 2001 Salt Spring Hydrobe E G1 AL
Pyrgophorus platyrachis Thompson, 1968 Serrate Crownsnail CS G5 FL
Pyrgophorus spinosus (Call and Pilsbry, 1886) Spiny Crownsnail V G3 TX
Spurwinkia salsa (Pilsbry, 1905) Saltmarsh Hydrobe CS G4G5 CT, FL, MA, MD, ME, NH, NJ. Canada, NB.
Stygopyrgus bartonensis Hershler and Longley, 1986 Barton Cavesnail E G1 TX
Tryonia aequicostata (Pilsbry, 1889) Smooth-ribbed Hydrobe V G3 FL
Tryonia angulata Hershler and Sada, 1987 Sportingoods Tryonia E G1 NV
Tryonia brunei Taylor, 1987 Brune's Springsnail E G1 TX
Tryonia cheatumi (Pilsbry, 1935) Phantom Tryonia E G1 E TX
Tryonia circumstriata (Leonard and Ho, 1960) Gonzales Springsnail E G1 E TX
Tryonia clathrata Stimpson, 1865 Grated Tryonia T G2 NV
Tryonia diaboli (Pilsbry and Ferriss, 1906) Devil Tryonia E G1 TX
Tryonia elata Hershler and Sada, 1987 Point of Rocks Tryonia E G1 NV
Tryonia ericae Hershler and Sada, 1987 Minute Tryonia E G1 NV
Tryonia gilae Taylor, 1987 Gila Tryonia E G1 AZ, NM
Tryonia imitator (Pilsbry, 1899) Mimic Tryonia T G2G3 CA
Tryonia margae Hershler, 1989 Grapevine Springs Elongate Springsnail E G1 CA
Tryonia metcalfi Hershler, Liu, and Landye, 2011 Metcalf's Tryonia E G1 TX
Tryonia monitorae Hershler, 1999 Monitor Tryonia E G1 NV
Tryonia oasiensis Hershler, Liu, and Landye, 2011 Carolinae Tryonia E G1 TX
Tryonia porrecta (Mighels, 1845) Desert Tryonia V G3 CA, NV, UT
Tryonia quitobaquitae Hershler, 1988 Quintobaquito Tryonia E G1 AZ, NM
Tryonia rowlandsi Hershler, 1989 Grapevine Springs Squat Tryonia E G1 CA
Tryonia salina Hershler, 1989 Cottonball Marsh Tryonia E G1 CA
Tryonia variegata Hershler and Sada, 1987 Amargosa Tryonia T G2 CA, NV
Family Hydrobiidae 15 Genera 188 Species
Birgella subglobosus (Say, 1825) Globe Siltsnail CS G4 AL, AR, IA, IL, IN, GA, KY, MI, MN, MO, MS, NY, OH, PA, TN, VT, WI, WV. Canada, MB, ON, QC.
Cincinnatia integra (Say, 1821) Midland Siltsnail CS G5 AL, AR, IL, IN, KS, KY, LA, ME, MD, MI, MN, MO, MS, ND, NE, NY, OH, OK, PA, SD, TN, TX, VA, VT, WI. Canada, MB, ON, SK.
Floridobia alexander (Thompson, 2000) Alexander Siltsnail E G1 FL
Floridobia floridana (Frauenfeld, 1863) Hyacinth Siltsnail CS G5 GA, FL
Floridobia fraterna (Thompson, 1968) Creek Siltsnail T G2 FL
Floridobia helicogyra (Thompson, 1968) Crystal Siltsnail E G1 FL
Floridobia leptospira (Thompson, 2000) Flatwood Siltsnail E G1G2 FL
Floridobia mica (Thompson, 1968) Ichetucknee Siltsnail E G1 FL
Floridobia monroensis (Dall, 1885) Enterprise Siltsnail E G1 FL
Floridobia parva (Thompson, 1968) Pygmy Siltsnail E G1 FL
Floridobia petrifons (Thompson, 1968) Rock Springs Siltsnail E G1 FL
Floridobia ponderosa (Thompson, 1968) Ponderous Siltsnail E G1 FL
Floridobia porterae (Thompson, 2000) Green Cove Springsnail E G1 FL
Floridobia vanhyningi (Vanatta, 1934) Seminole Siltsnail E G1 FL
Floridobia wekiwae (Thompson, 1968) Wekiva Siltsnail E G1 FL
Floridobia winkleyi (Pilsbry, 1912) New England Siltsnail V G3 CT, MA, ME
Fontigens aldrichi (Call and Beecher, 1886) Hoosier Springsnail CS G4 IL, MO
Fontigens antroecetes (Hubricht, 1940) Missouri Cavesnail T G2 IL, MO
Fontigens bottimeri (Walker, 1925) Potomac Springsnail T G2 MD, VA
Fontigens cryptica Hubricht, 1963 Hidden Springsnail E G1 IN
Fontigens morrisoni Hershler, Holsinger, and Hubricht, 1990 Morrison's Springsnail E G1 VA
Fontigens nickliniana (Lea, 1838) Watercress Snail CS G5 AL, IL, IN, KY, MD, MI, NC, NY, OH, PA, TN, VA, WI, WV
Fontigens orolibas Hubricht, 1957 Blue Ridge Springsnail V G3 MD, PA, VA
Fontigens proserpina Hubricht, 1940 Proserpine Cavesnail E G1 MO
Fontigens tartarea Hubricht, 1963 Organ Cavesnail T G2 WV
Fontigens turritella Hubricht, 1976 Greenbrier Cavesnail E G1 WV
Hoyia sheldoni (Pilsbry, 1890) Storm Ghostsnail E G1 WI
Marstonia agarhecta Thompson, 1969 Ocmulgee Marstonia E G1 GA
Marstonia angulobasis Thompson, 2005 Angled Marstonia E G1 AL, TN
Marstonia arga Thompson, 1977 Ghost Marstonia CS G5 AL, TN
Marstonia castor Thompson, 1977 Beaverpond Marstonia E G1 GA
Marstonia comalensis (Pilsbry and Ferriss, 1906) Comal Marstonia E G1 TX
Marstonia gaddisorum Thompson, 2005 Emily's Marstonia E G1 GA
Marstonia halcyon Thompson, 1977 Halcyon Marstonia T G2 GA
Marstonia hershleri (Thompson, 1995) Coosa Pyrg E G1 AL
Marstonia letsoni (Walker, 1901) Gravel Pyrg CS G5 MI, NY, OH, PA. Canada, ON.
Marstonia lustrica (Pilsbry, 1890) Boreal Marstonia CS G5 IA, IL, IN, MA, ME, MI, MN, NY, OH, PA, VT, WI. Canada, MB, ON, NT, QC, NB.
Marstonia ogmorhaphe Thompson, 1977 Royal Marstonia E G1 E TN
Marstonia olivacea (Pilsbry, 1895) Olive Marstonia X GX AL
Marstonia ozarkensis (Hinkley, 1915) Ozark Pyrg E G1 AR, MO
Marstonia pachyta Thompson, 1977 Armored Marstonia E G1 E AL
Marstonia scalariformis (Wolf, 1870) Moss Pyrg V G3 AL, IA, IL, MO
Notogillia sathon Thompson, 1969 Satyr Siltsnail V G3 GA
Notogillia wetherbyi (Dall, 1885) Alligator Siltsnail CS G5 AL, FL, GA
Phreatodrobia coronae Hershler and Longley, 1987 Crowned Cavesnail E G1G2 TX
Phreatodrobia imitata Hershler and Longley, 1986 Mimic Cavesnail E G1 TX
Phreatodrobia micra (Pilsbry and Ferriss, 1906) Flattened Cavesnail T G2 TX
Phreatodrobia nugax (Pilsbry and Ferriss, 1906) Domed Cavesnail V G3G4 TX
Phreatodrobia plana Hershler and Longley, 1986 Disc Cavesnail T G2 TX
Phreatodrobia punctata Hershler and Longley, 1986 High-hat Cavesnail T G2 TX
Phreatodrobia rotunda Hershler and Longley, 1986 Beaked Cavesnail E G1G2 TX
Probythinella emarginata (Kuster, 1852) Delta Hydrobe CS G5 AL, AR, IA, IL, IN, KS, KY, LA, ME, MI, MN, MO, MS, MT, NC, ND, NE, NY, OH, OK, PA, SD, TN, TX, WI. Canada, AB, MB, NT, NU, ON, QC, SK.
Pyrgulopsis aardahli Hershler, 1989 Benton Valley Springsnail E G1 CA
Pyrgulopsis aloba Hershler, 1998 Duckwater Pyrg E G1 NV
Pyrgulopsis amargosae Hershler, 1989 Amargosa Springsnail E G1 CA
Pyrgulopsis anatina Hershler, 1998 Southern Duckwater Pyrg E G1 NV
Pyrgulopsis anguina Hershler, 1998 Longitudinal Gland Pyrg E G1 NV, UT
Pyrgulopsis archimedis Berry, 1947 Archimedes Pyrg E G1 CA, OR
Pyrgulopsis arizonae (Taylor, 1987) Apache Springsnail E G1 AZ
Pyrgulopsis augustae Hershler, 1998 Elongate Cane Spring Pyrg E G1 NV
Pyrgulopsis aurata Hershler, 1998 Pleasant Valley Pyrg E G1 NV
Pyrgulopsis avernalis (Pilsbry, 1935) Moapa Pebblesnail E G1G2 NV
Pyrgulopsis bacchus Heshler, 1988 Grand Wash Springsnail E G1 AZ
Pyrgulopsis basiglans Hershler, 1998 Large Gland Carico Pyrg E G1 NV
Pyrgulopsis bedfordensis Hershler and Gustafson, 2001 Bedford Pyrg E G1 MT
Pyrgulopsis bernardina (Taylor, 1987) San Bernardino Springsnail E G1 E AZ
Pyrgulopsis bifurcata Hershler, 1998 Small Gland Carico Pyrg E G1 NV
Pyrgulopsis blainica Hershler, Liu, Gustafson, 2008 Blane Pyrg E G1 MT
Pyrgulopsis breviloba Hershler, 1998 Flat Pyrg E G1 NV
Pyrgulopsis bruesi Hershler and Sada, 2000 Fy Ranch Pyrg E G1 NV
Pyrgulopsis bruneauensis Hershler, 1990 Bruneau Hot Springsnail E G1 E ID
Pyrgulopsis bryantwalkeri Hershler, 1994 Cortez Hills Pebblesnail E G1 NV
Pyrgulopsis californiensis (Gregg and Taylor, 1965) Languna Mountain Springsnail V G3G4 CA
Pyrgulopsis carinata Hershler, 1998 Carinate Duckwater Pyrg X GX NV
Pyrgulopsis carinifera (Pilsbry, 1935) Moapa Valley Pyrg E G1 NV
Pyrgulopsis castaicensis Hershler and Liu, 2010 Middle Canyon Spring Pyrg E G1 CA
Pyrgulopsis chamberlini Hershler, 1998 Smooth Glenwood Pyrg E G1 UT
Pyrgulopsis chupaderae (Taylor, 1987) Chupadera Springsnail E G1 E NM
Pyrgulopsis cinerana Hershler, Frest, Liu, and Johannes, 2003 Ash Valley Pyrg E G1G2 CA
Pyrgulopsis coloradensis Hershler, 1998 Blue Point Pyrg E G1 NV
Pyrgulopsis conica Hershler, 1988 Kingman Springsnail E G1 AZ
Pyrgulopsis cruciglans Hershler, 1998 Transverse Gland Pyrg E G1 NV
Pyrgulopsis crystalis Hershler and Sada, 1987 Crystal Springsnail E G1 NV
Pyrgulopsis cybele Hershler and Liu, 2012 Nature Pyrg E G1 NV
Pyrgulopsis davisi (Taylor, 1987) Limpia Creek Springsnail E G1 TX
Pyrgulopsis deaconi Hershler, 1998 Spring Mountains Pyrg E G1 NV
Pyrgulopsis deserta (Pilsbry, 1916) Desert Springsnail T G2 AZ, UT
Pyrgulopsis diablensis Hershler, 1995 Diablo Range Pyrg E G1 CA
Pyrgulopsis dixiensis Hershler, 1998 Dixie Valley Pyrg E G1 NV
Pyrgulopsis eremica Hershler, 1995 Smoke Creek Pyrg T G2 CA
Pyrgulopsis erythropoma (Pilsbry, 1899) Ash Meadows Pebblesnail E G1 NV
Pyrgulopsis fairbanksensis Hershler and Sada, 1987 Fairbanks Springsnail E G1 NV
Pyrgulopsis falciglans Hershler, Frest, Liu, and Johannes, 2003 Likely Pyrg E G1G2 CA
Pyrgulopsis fausta Hershler, 1998 Corn Creek Pyrg E G1 NV
Pyrgulopsis fresti Hershler and Liu, 2009 Owyhee Hot Springsnail E G1 OR
Pyrgulopsis fusca Hershler, 1998 Otter Creek Pyrg E G1 UT
Pyrgulopsis gibba Hershler, 1995 Surprise Valley Pyrg V G3 CA, NV
Pyrgulopsis gilae (Taylor, 1987) Gila Springsnail T G2 C NM
Pyrgulopsis giuliani Hershler and Pratt, 1990 Southern Sierra Nevada Springsnail E G1G2 CA
Pyrgulopsis glandulosa Hershler, 1988 Verde Rim Springsnail E G1 AZ
Pyrgulopsis gracilis Hershler, 1998 Emigrant Pyrg E G1 NV
Pyrgulopsis greggi Hershler, 1995 Kern River Springsnail E G1 CA
Pyrgulopsis hamlinensis Hershler, 1998 Hamlin Valley Pyrg E G1 UT
Pyrgulopsis hovinghi Hershler, 1998 Upper Thousand Spring Pyrg E G1 NV
Pyrgulopsis hubbsi Hershler, 1998 Hubbs Pyrg E G1 NV
Pyrgulopsis humboldtensis Hershler, 1998 Humbolt Pyrg E G1 NV
Pyrgulopsis ignota Hershler, Liu, and Lang, 2010 Caroline Springs Pyrg E G1 TX
Pyrgulopsis imperialis Hershler, 1998 Kings River Pyrg E G1 NV
Pyrgulopsis inopinata Hershler, 1998 Carinate Glenwood Pyrg E G1 UT
Pyrgulopsis intermedia (Tryon, 1865) Crooked Creek Springsnail E G1G2 OR
Pyrgulopsis isolata Hershler and Sada, 1987 Elongate-gland Springsnail E G1 NV
Pyrgulopsis kolobensis (Taylor, 1987) Toquerville Springsnail CS G5 ID, NV, UT
Pyrgulopsis landyei Hershler, 1998 Landyes Pyrg E G1 NV
Pyrgulopsis lasseni Hershler, Frest, Liu, and Johannes, 2003 Willow Creek Pyrg E G1G2 CA
Pyrgulopsis lata Hershler, 1998 Butterfield Pyrg E G1 NV
Pyrgulopsis lentiglans Hershler, 1998 Critteden Pyrg E G1 NV
Pyrgulopsis leporina Hershler, 1998 Elko Pyrg E G1 NV
Pyrgulopsis licina Hershler, Liu, and Bradford, 2013 Nye County Pyrg E G1 NV
Pyrgulopsis limaria Hershler, 1998 Squat Mud Meadows Pyrg E G1 NV
Pyrgulopsis lockensis Hershler, 1998 Lockes Pyrg E G1 NV
Pyrgulopsis longae Hershler, 1995 Long Valley Pyrg E G1 CA
Pyrgulopsis longiglans Hershler, 1998 Western Lahontan Pyrg T G2G3 NV
Pyrgulopsis longinqua (Gould, 1855) Salton Sea Springsnail E G1 CA
Pyrgulopsis marcida Hershler, 1998 Hardy Pyrg T G2 NV
Pyrgulopsis merriami (Pilsbry and Beecher, 1892) Pahrangagat Pebblesnail E G1 NV
Pyrgulopsis metcalfi (Taylor, 1987) Naegele Springsnail E G1 NM, TX
Pyrgulopsis micrococcus (Pilsbry, 1893) Oasis Valley Springsnail V G3 CA, NV
Pyrgulopsis militaris Hershler, 1998 Northern Soldier Meadow Pyrg E G1 NV
Pyrgulopsis millenaria Hershler, 1998 Twentyone Mile Pyrg E G1 NV
Pyrgulopsis milleri Hershler and Liu, 2010 Pierpoint Spring Pyrg E G1 CA
Pyrgulopsis montana Hershler, 1998 Camp Valley Pyrg E G1 NV
Pyrgulopsis montezumensis Hershler, 1988 Montezuma Well Springsnail E G1 AZ
Pyrgulopsis morrisoni Hershler, 1988 Page Springsnail E G1 C AZ
Pyrgulopsis nanus Hershler and Sada, 1987 Distal-gland Springsnail E G1 NV
Pyrgulopsis neomexicana (Pilsbry, 1916) Socorro Springsnail E G1 E NM
Pyrgulopsis neritella Hershler, 1998 Neritiform Steptoe Ranch Pyrg E G1 NV
Pyrgulopsis nevadensis (Stearns, 1883) Corded Pyrg X GX NV
Pyrgulopsis nonaria Hershler, 1998 Ninemile Pyrg E G1 UT
Pyrgulopsis notidicola Hershler, 1998 Elongate Mud Meadows Pyrg E G1 C NV
Pyrgulopsis orbiculata Hershler, 1998 Sub-globose Steptoe Ranch Pyrg E G1 NV
Pyrgulopsis owensensis Hershler, 1989 Owens Valley Springsnail E G1G2 CA, NV
Pyrgulopsis owyheensis Hershler and Liu, 2009 Owyhee Upland Pyrg E G1G2 OR
Pyrgulopsis papillata Hershler, 1998 Big Warm Spring Pyrg E G1 NV
Pyrgulopsis pecosensis (Taylor, 1987) Pecos Springsnail E G1 NM
Pyrgulopsis peculiaris Hershler, 1998 Bifid Duct Pyrg T G2 NV, UT
Pyrgulopsis pellita Hershler, 1998 Antelope Valley Pyrg E G1 NV
Pyrgulopsis perforata Hershler, Liu, and Bradford, 2013 Umbilicate Pyrg E G1 CA
Pyrgulopsis perturbata Hershler, 1989 Fish Slough Springsnail E G1G2 CA
Pyrgulopsis pictilis Hershler, 1998 Ovate Cain Spring Pyrg E G1 NV
Pyrgulopsis pilsbryana (Bailey and Bailey, 1952) Bear Lake Springsnail T G2 ID, UT, WY
Pyrgulopsis pisteri Hershler and Sada, 1987 Median-gland Springsnail E G1 NV
Pyrgulopsis planulata Hershler, 1998 Flat-topped Steptoe Pyrg E G1 NV
Pyrgulopsis plicata Hershler, 1998 Black Canyon Pyrg E G1 UT
Pyrgulopsis robusta (Walker, 1908) Jackson Lake Springsnail CS G5 ID, OR, WA, WY
Pyrgulopsis roswellensis (Taylor, 1987) Roswell Springsnail E G1 E NM
Pyrgulopsis ruinosa Hershler, 1998 Fish Lake Pyrg X GX NV
Pyrgulopsis rupinicola Hershler, Frest, Liu, and Johannes, 2003 Sucker Spring Pyrg E G1G2 CA
Pyrgulopsis sadai Hershler, 1998 Sada's Pyrg E G1 NV
Pyrgulopsis sanchezi Hershler, Liu, and Bradford, 2013 Purgatory Pyrg E G1 CA, NV
Pyrgulopsis sathos Hershler, 1998 White River Valley Pyrg T G2 NV
Pyrgulopsis saxatilis Hershler, 1998 Sub-globose Snake Pyrg E G1 UT
Pyrgulopsis serrata Hershler, 1998 Northern Steptoe Pyrg V G3 NV
Pyrgulopsis simplex Hershler, 1988 Fossil Springsnail E G1G2 AZ
Pyrgulopsis sola Hershler, 1988 Brown Springsnail E G1 AZ
Pyrgulopsis stearnsiana (Pilsbry, 1899) Yaqui Springsnail T G2 CA
Pyrgulopsis sterilis Hershler, 1998 Sterile Basin Pyrg E G1 NV
Pyrgulopsis sublata Hershler, 1998 Lake Valley Pyrg E G1 NV
Pyrgulopsis sulcata Hershler, 1998 Southern Steptoe Pyrg E G1 NV
Pyrgulopsis taylori Hershler, 1995 San Luis Obispo Pyrg E G1 CA
Pyrgulopsis texana (Pilsbry, 1935) Phantom Cavesnail E G1 E TX
Pyrgulopsis thermalis (Taylor, 1987) New Mexico Hot Springsnail E G1 E NM
Pyrgulopsis thompsoni Hershler, 1988 Huachuca Springsnail T G2 E AZ
Pyrgulopsis transversa Hershler, 1998 Southern Bonneville Pyrg T G2 UT
Pyrgulopsis trivialis (Taylor, 1987) Black River Springsnail E G1 E AZ, NM
Pyrgulopsis turbatrix Hershler, 1998 Southeast Nevada Pyrg T G2 NV
Pyrgulopsis umbilicata Hershler, 1998 Southern Soldier Meadow Pyrg E G1 NV
Pyrgulopsis variegata Hershler, 1998 Northwest Bonneville Pyrg T G2 NV, UT
Pyrgulopsis varneri Heshler, Liu, and Sada, 2007 Varner's Pyrg E G1 NV
Pyrgulopsis ventricosa Hershler, 1995 Clear Lake Pyrg E G1 CA
Pyrgulopsis villacampae Hershler, 1998 Duckwater Warm Springs Pyrg E G1 NV
Pyrgulopsis vinyardi Hershler, 1998 Vinyards Pyrg E G1 NV
Pyrgulopsis wongi Hershler, 1989 Wong's Pyrg T G2G3 CA, NV
Rhapinema dacryon Thompson, 1969 Teardrop Snail CS G5 AL, FL, GA
Spilochlamys conica Thompson, 1968 Conical Siltsnail V G3G4 FL, GA
Spilochlamys gravis Thompson, 1968 Armored Siltsnail V G3G4 FL
Spilochlamys turgida Thompson, 1969 Pumpkin Siltsnail T G2 GA
Stiobia nana Thompson, 1978 Sculpin Snail E G1 AL
Texapyrgus longleyi Thompson and Hershler, 1991 Striated Hydrobe E G1 TX
Lithoglyphidae 11 Genera 73 Species
Antrorbis breweri Hershler and Thompson, 1990 Manitou Cavesnail E G1 AL
Clappia cahabensis Clench, 1965 Cahaba Pebblesnail E G1 AL
Clappia umbilicata (Walker, 1904) Umbilicate Pebblesnail X GX AL
Fluminicola ahjumawi Hershler, Liu, Frest and Johannes, 2007 Ahjumawi Pebblesnail V G3 OR
Fluminicola anserinus Hershler, Liu, Frest and Johannes, 2007 Goose Valley Pebblesnail E G1 OR
Fluminicola caballensis Hershler, Liu, Frest and Johannes, 2007 Horse Creek Pebblesnail E G1 OR
Fluminicola coloradoensis Morrison, 1940 Green River Pebblesnail T G2G3 ID, UT, WY
Fluminicola dalli (Call, 1884) Pyramid Lake Pebblesnail E G1 NV
Fluminicola erosus Hershler, Liu, Frest and Johannes, 2007 Smokey Charley Pebblesnail E G1 OR
Fluminicola favillaceus Hershler, Liu, Frest and Johannes, 2007 Ash Valley Pebblesnail E G1 OR
Flumincola fremonti Hershler, Liu, Frest and Johannes, 2007 Fremont Pebblesnail E G1 OR
Fluminicola fuscus (Haldeman, 1847) Ashy Pebblesnail T G2 ID, MT, OR, WA, WY. Canada, BC.
Fluminicola gustafsoni Hershler and Liu, 2012 Salmon River Pebblesnail V G3 ID, WA
Fluminicola insolitus Hershler, 1999 Strange Pebblesnail E G1 OR
Fluminicola lunsfordensis Hershler, Liu, Frest and Johannes, 2007 Lunsford Pebblesnail E G1 CA
Fluminicola minutissimus Pilsbry, 1907 Pixie Pebblesnail Xp GH ID
Fluminicola modoci Hannibal, 1912 Modoc Pebblesnail E G1 CA, OR
Fluminicola multifarius Hershler, Liu, Frest and Johannes, 2007 Shasta Pebblesnail T G2 OR
Fluminicola neritoides Hershler, Liu, Frest and Johannes, 2007 Willow Creek Pebblesnail E G1 OR
Fluminicola nuttallianus (Lea, 1838) Dusky Pebblesnail Xp GH OR
Fluminicola potemicus Hershler, Liu, Frest and Johannes, 2007 Potem Creek Pebblesnail E G1 OR
Fluminicola scopulinus Hershler, Liu, Frest and Johannes, 2007 Castle Creek Pebblesnail E G1 OR
Fluminicola seminalis (Hinds, 1842) Nugget Pebblesnail T G2 CA
Fluminicola turbiniformis (Tryon, 1865) Turban Pebblesnail V G3 CA, NV, OR
Flumincola umbilicatus Hershler, Liu, Frest and Johannes, 2007 Goose Valley Pebblesnail E G1 OR
Fluminicola virens (Lea, 1838) Olympia Pebblesnail T G2 OR, WA
Fluminicola virginius Hershler, 1999 Virginia Mountains Pebblesnail E G1 NV
Fluminicola warnerensis Hershler, Liu, Frest and Johannes, 2007 Topaz Pebblesnail T G2 OR
Gillia altilis (Lea, 1841) Buffalo Pebblesnail CS G5 MD, NC, NJ, NY, PA, SC, VA, VT, WV. Canada, ON.
Holsingeria unthanksensis Hershler, 1989 Thankless Ghostsnail T G2 VA
Lepyrium showalteri (Lea, 1861) Flat Pebblesnail E G1 E AL
Phreatoceras taylori (Hershler and Longley, 1986) Nymph Trumpet E G1G2 TX
Phreatodrobia conica Hershler and Longley, 1986 Hueco Cavesnail E G1 TX
Pristinicola hemphilli (Pilsbry, 1890) Pristine Pyrg V G3 CA, ID, OR, WA
Somatogyrus alcoviensis Krieger, 1972 Reverse Pebblesnail E G1 GA
Somatogyrus amnicoloides Walker, 1915 Ouachita Pebblesnail U GU AR
Somatogyrus aureus Tryon, 1865 Golden Pebblesnail U GU AL, TN
Somatogyrus biangulatus Walker, 1906 Angular Pebblesnail U GU AL
Somatogyrus constrictus Walker, 1904 Knotty Pebblesnail U GU AL
Somatogyrus coosaensis Walker, 1904 Coosa Pebblesnail U GU AL
Somatogyrus crassilabris Walker, 1915 Thick-lip Pebblesnail Xp GH AR
Somatogyrus crassus Walker, 1904 Stocky Pebblesnail U GU AL
Somatogyrus currierianus (Lea, 1863) Tennessee Pebblesnail U GU AL
Somatogyrus decipiens Walker, 1909 Hidden Pebblesnail U GU AL
Somatogyrus depressus (Tryon, 1862) Sandbar Pebblesnail T G2 IA, IL, MO, WI
Somatogyrus excavatus Walker, 1906 Ovate Pebblesnail U GU AL
Somatogyrus georgianus Walker, 1904 Cherokee Pebblesnail U GU AL, GA, TN
Somatogyrus hendersoni Walker, 1909 Fluted Pebblesnail U GU AL
Somatogyrus hinkleyi Walker, 1904 Granite Pebblesnail U GU AL
Somatogyrus humerosus Walker, 1906 Atlas Pebblesnail U GU AL
Somatogyrus integra (Say, 1829) Ohio Pebblesnail V G3 IL, IN, KY, OH, PA
Somatogyrus nanus Walker, 1904 Dwarf Pebblesnail U GU AL
Somatogyrus obtusus Walker, 1904 Moon Pebblesnail U GU AL
Somatogyrus parvulus Tryon, 1865 Sparrow Pebblesnail E G1G2Q TN
Somatogyrus pennsylvanicus Walker, 1904 Shale Pebblesnail V G3 PA, VA, WV
Somatogyrus pilsbryanus Walker, 1904 Tallapoosa Pebblesnail U GU AL
Somatogyrus pumilus (Conrad, 1834) Compact Pebblesnail U GU AL
Somatogyrus pygmaeus Walker, 1909 Pygmy Pebblesnail U GU AL
Somatogyrus quadratus Walker, 1906 Quadrate Pebblesnail U GU AL
Somatogyrus rheophilus Thompson, 1984 Flint Pebblesnail E G1 GA
Somatogyrus rosewateri Gordon, 1986 Elk Pebblesnail E G1 MO
Somatogyrus sargenti Pilsbry, 1895 Mud Pebblesnail U GU AL
Somatogyrus strengi Pilsbry and Walker, 1906 Rolling Pebblesnail U GU AL
Somatogyrus substriatus Walker, 1906 Choctaw Pebblesnail U GU AL, MS
Somatogyrus tenax Thompson, 1969 Savannah Pebblesnail T G2G3 GA
Somatogyrus tennesseensis Walker, 1906 Opaque Pebblesnail U GU AL, MS, TN
Somatogyrus trothis Doherty, 1878 U GU KY
Somatogyrus tryoni Pilsbry and Baker, 1927 Coldwater Pebblesnail T G2G3 IL, MN, WI
Somatogyrus virginicus Walker, 1904 Panhandle Pebblesnail T G2G3 NC, SC, VA
Somatogyrus walkerianus Aldrich, 1905 Gulf Coast Pebblesnail T G2G3 AL, FL
Somatogyrus wheeleri Walker, 1915 Channelled Pebblesnail Xp GH AR
Taylorconcha insperata Hershler, Liu, Frest, Johannes, and Clark, 2006 Unexpected Pebblesnail E G1 ID, OR
Taylorconcha serpenticola Hershler, Frest, Johannes, Bowler, and Thompson, 1994 Bliss Rapids Snail E G1 T ID
Family Pleuroceridae 7 Genera 163 Species
Athearnia anthonyi (Redfield, 1854) Anthony's Riversnail E G1 E AL, GA, TN
Athearnia crassa (Haldeman, 1841) Boulder Snail X GX TN
Elimia acuta (Lea, 1831) Acute Elimia T G2 AL, TN
Elimia alabamensis (Lea, 1861) Mud Elimia T G2 AL
Elimia albanyensis (Lea, 1864) Black-crest Elimia V G3 AL, FL, GA
Elimia ampla (Anthony, 1854) Ample Elimia E G1 AL
Elimia annae Mihalcik and Thompson, 2002 Rainbow Elimia V G3 AL
Elimia annettae (Goodrich, 1941) Lilyshoals Elimia T G2 AL
Elimia arachnoidea (Anthony, 1854) Spider Elimia T G2 TN, VA
Elimia aterina (Lea, 1863) Coal Elimia T G2 TN, VA
Elimia athearni (Clench and Turner, 1956) Knobby Elimia V G3Q FL
Elimia bellacrenata (Haldeman, 1841) Princess Elimia E G1Q AL
Elimia bellula (Lea, 1861) Walnut Elimia E G1 AL
Elimia boykiniana (Lea, 1840) Flaxen Elimia T G2 AL, GA
Elimia brevis (Reeve, 1860) Short Spire Elimia X GX AL
Elimia broccata Thompson, 2000 Brooch Elimia E G1 AL
Elimia buffyae Mihalcik and Thompson, 2002 Iris Elimia CS G4 AL, FL
Elimia bullula (Lea, 1861) Yellowleaf Elimia E G1G2Q AL
Elimia caelatura (Reeve, 1860) Savannah Elimia V G3 GA
Elimia cahawbensis (Lea, 1841) Cahaba Elimia CS G4 AL
Elimia capillaris (Lea, 1861) Spindle Elimia X GX AL, GA
Elimia carinifera (Lamarck, 1822) Sharp-crest Elimia CS G5 AL, GA, TN
Elimia carinocostata (Lea, 1854) Fluted Elimia CS G4Q AL, GA
Elimia catenaria (Say, 1822) Gravel Elimia CS G4 GA, NC, SC, VA
Elimia catenoides (Lea, 1842) Lirate Elimia U GU AL, GA
Elimia chiltonensis (Goodrich, 1941) Prune Elimia E G1G2 AL
Elimia christyi (Lea, 1862) Knotty Elimia T G2 NC, TN
Elimia clara (Anthony, 1854) Riffle Elimia V G3 AL
Elimia clausa (Lea, 1861) Closed Elimia X GX AL
Elimia clavaeformis (Lea, 1841) Club Elimia CS G4 NC, TN, VA
Elimia clenchi (Goodrich, 1924) Slackwater Elimia V G3 AL, FL
Elimia cochliaris (Lea, 1868) Cockle Elimia E G1 AL
Elimia comalensis (Pilsbry, 1890) Balcones Elimia T G2 TX
Elimia comma (Conrad, 1834) Hispid Elimia T G2 AL
Elimia costifera (Reeve, 1861) Corded Elimia V G2G4 IL, KY
Elimia crenatella (Lea, 1860) Lacy Elimia E G1 T AL
Elimia curreyana (Lea, 1841) Amber Elimia V G3 KY, TN
Elimia cylindracea (Conrad, 1834) Cylinder Elimia T G2 AL, MS
Elimia darwini Mihalcik and Thompson, 2002 Pup Elimia E G1 GA
Elimia dickinsoni (Clench and Turner, 1956) Stately Elimia V G3 AL, FL
Elimia dislocata (Reeve, 1861) Lapped Elimia CS G4Q NC, SC, VA
Elimia dooleyensis (Lea, 1862) Graphite Elimia CS G5 AL, FL, GA
Elimia ebenum (Lea, 1841) Ebony Elimia CS G5 KY, TN
Elimia edgariana (Lea, 1841) Cumberland Elimia V G3 KY, TN
Elimia exusta Mihalcik and Thompson, 2002 Fire Elimia T G2 AL
Elimia fascinans (Lea, 1861) Banded Elimia V G3 AL
Elimia flava (Lea, 1862) Yellow Elimia CS G4 AL
Elimia floridensis (Reeve, 1860) Rasp Elimia CS G5 FL, GA
Elimia fusiformis (Lea, 1861) Fusiform Elimia X GX AL
Elimia gibbera (Goodrich, 1922) Shouldered Elimia X GX AL
Elimia glarea Mihalcik and Thompson, 2002 Gravel Elimia V G3 AL
Elimia godwini Thompson, 2000 Rusty Elimia T G2 AL
Elimia hartmaniana (Lea, 1861) High-spired Elimia X GX AL
Elimia haysiana (Lea, 1843) Silt Elimia V G3 AL
Elimia hydeii (Conrad, 1834) Gladiator Elimia T G2 AL
Elimia impressa (Lea, 1841) Constricted Elimia X GX AL
Elimia inclinans (Lea, 1862) Slanted Elimia E G1G2Q GA
Elimia interveniens (Lea, 1862) Slowwater Elimia T G2 AL, TN
Elimia induta (Lea, 1862) Gem Elimia T G2 GA
Elimia jonesi (Goodrich, 1936) Hearty Elimia X GX AL
Elimia lachryma (Reeve, 1861) Teardrop Elimia E G1 AL
Elimia laeta (Jay, 1839) Ribbed Elimia X GX AL
Elimia laqueata (Say, 1829) Panel Elimia CS G5 AL, KY, TN
Elimia lecontiana (Lea, 1841) Rippled Elimia V G3 AL, GA
Elimia livescens (Menke, 1830) Liver Elimia CS G5 IA, IL, IN, KY, MI, NY, OH, PA, VT, WI. Canada, ON, QC.
Elimia macglameriana (Goodrich, 1936) Wrinkled Elimia X GX AL, GA
Elimia melanoides (Conrad, 1834) Black Mudalia T G2 C AL
Elimia mihalcikae Thompson, 2000 Latticed Elimia E G1 AL
Elimia modesta (Lea, 1845) Coldwater Elimia CS G5 AL, GA
Elimia mutabilis (Lea, 1862) Oak Elimia T G2Q GA
Elimia nassula (Conrad, 1834) Round-ribbed Elimia E G1 AL
Elimia olivula (Conrad, 1834) Caper Elimia E G1 AL
Elimia ornata (Lea, 1868) Ornate Elimia E G1 GA
Elimia paupercula (Lea, 1862) Sooty Elimia CS G4Q AL
Elimia perstriata (Lea, 1852) Engraved Elimia E G1 AL
Elimia pilsbryi (Goodrich, 1927) Rough-lined Elimia X GX AL
Elimia plicatastriata (Wetherby, 1876) Carved Elimia T G2G3 KY, TN
Elimia porrecta (Lea, 1863) Nymph Elimia T G2 TN
Elimia potosiensis (Lea, 1841) Pyramid Elimia CS G5 AR, KS, MO, OK
Elimia proxima (Say, 1825) Sprite Elimia CS G5 GA, NC, SC, VA, WV
Elimia pupaeformis (Lea, 1864) Pupa Elimia X GX AL
Elimia pupoidea (Anthony, 1854) Bot Elimia X GX AL
Elimia pybasii (Lea, 1862) Spring Elimia T G2Q AL
Elimia pygmaea (Smith, 1936) Pygmy Elimia X GX AL
Elimia semicarinata (Say, 1829) Fine-ridged Elimia CS G5 IN, KY, OH
Elimia showalterii (Lea, 1860) Compact Elimia E G1 AL
Elimia simplex (Say, 1825) Smooth Elimia CS G5 NC, TN, VA, WV
Elimia striatula (Lea, 1842) File Elimia T G2 GA, TN
Elimia strigosa (Lea, 1841) Brook Elimia T G2 TN
Elimia symmetrica (Haldeman, 1841) Symmetrical Elimia CS G4Q NC, VA
Elimia taitiana (Lea, 1841) Dented Elimia V G3Q AL, FL
Elimia teres (Lea, 1841) Elegant Elimia E G1 TN
Elimia teretria Thompson, 2000 Auger Elimia E G1 AL
Elimia timida (Goodrich, 1942) Timid Elimia E G1 GA
Elimia troostiana (Lea, 1838) Mossy Elimia E G1 TN
Elimia ucheensis (Lea, 1862) Creek Elimia V G3 AL
Elimia vanhyningiana (Goodrich, 1921) Goblin Elimia CS G5 FL
Elimia vanuxemiana (Lea, 1843) Cobble Elimia E G1Q AL
Elimia varians (Lea, 1861) Puzzle Elimia T G2Q AL
Elimia variata (Lea, 1861) Squat Elimia T G2Q AL
Elimia viennaensis (Lea, 1862) Slough Elimia CS G4 AL, GA
Elimia virginica (Say, 1817) Piedmont Elimia CS G5 CT, MA, MD, NC, NJ, NY, PA, VA, WV
Gyrotoma excisa (Lea, 1843) Excised Slitshell X GX AL
Gyrotoma lewisii (Lea, 1869) Striate Slitshell X GX AL
Gyrotoma pagoda (Lea, 1845) Pagoda Slitshell X GX AL
Gyrotoma pumila (Lea, 1860) Ribbed Slitshell X GX AL
Gyrotoma pyramidata (Shuttleworth, 1845) Pyramid Slitshell X GX AL
Gyrotoma walkeri (Smith, 1924) Round Slitshell X GX AL
Io fluvialis (Say, 1825) Spiny Riversnail T G2 AL, GA, TN, VA
Leptoxis ampla (Anthony, 1855) Round Rocksnail T G2 T AL
Leptoxis arkansensis (Hinkley, 1915) Arkansas Mudalia E G1 AR, MO
Leptoxis carinata (Bruquiere, 1792) Crested Mudalia CS G5 MD, NC, NJ, NY, PA, VA, WV
Leptoxis clipeata (Smith, 1922) Agate Rocksnail X GX AL
Leptoxis compacta (Anthony, 1854) Oblong Rocksnail E G1 AL
Leptoxis dilatata (Conrad, 1835) Seep Mudalia V G3 NC, PA, VA, WV
Leptoxis foremani (Lea, 1843) Interrupted Rocksnail E G1 E AL, GA
Leptoxis formosa (Lea, 1860) Maiden Rocksnail X GX AL, GA
Leptoxis ligata (Anthony, 1860) Rotund Rocksnail X GX AL
Leptoxis lirata (Smith, 1922) Lirate Rocksnail X GX AL
Leptoxis minor (Hinkley, 1912) Knob Mudalia X GX AL
Leptoxis occultata (Smith, 1922) Bigmouth Rocksnail X GX AL
Leptoxis picta (Conrad, 1834) Spotted Rocksnail E G1 AL
Leptoxis plicata (Conrad, 1834) Plicate Rocksnail E G1 E AL
Leptoxis praerosa (Say, 1821) Onyx Rocksnail CS G5 AL, GA, IL, IN, KY, OH, TN, VA
Leptoxis showalterii (Lea, 1860) Coosa Rocksnail X GX AL
Leptoxis taeniata (Conrad, 1834) Painted Rocksnail E G1 T AL
Leptoxis torrefacta (Goodrich, 1922) Squat Rocksnail X GX AL
Leptoxis trilineata (Say, 1829) Broad Mudalia X GX IN, KY, OH
Leptoxis umbilicata (Wetherby, 1876) Umbilicate Rocksnail E G1Q TN
Leptoxis virgata (Lea, 1841) Smooth Mudalia T G2 AL, NC, TN, VA
Leptoxis vittata (Lea, 1860) Striped Rocksnail X GX AL
Lithasia armigera (Say, 1821) Armored Rocksnail V G3G4 AL, IL, IN, KY, OH, TN, WV
Lithasia bubula Minton, 2013 Buffalo Rocksnail E G1 TN
Lithasia curta (Lea, 1868) Knobby Rocksnail E G1 AL, KY, TN
Lithasia duttoniana (Lea, 1841) Helmet Rocksnail T G2 TN
Lithasia geniculata Haldeman, 1840 Ornate Rocksnail V G3 AL, IL, KY, TN
Lithasia hubrichti Clench, 1956 Big Black Rocksnail X GX MS
Lithasia jayana (Lea, 1841) Rugose Rocksnail X GX TN
Lithasia lima (Conrad, 1834) Warty Rocksnail T G2 AL, MS, TN
Lithasia obovata (Say, 1829) Shawnee Rocksnail CS G4 IL, IN, KY, OH, PA, TN
Lithasia salebrosa (Conrad, 1834) Muddy Rocksnail V G3 AL, KY, TN
Lithasia spicula Minton, Savarese, and Campbell, 2005 Harpeth Rocksnail E G1 TN
Lithasia verrucosa (Rafinesque, 1820) Varicose Rocksnail CS G4 AL, AR, IN, IL, KY, NC, OH, PA, TN, WV
Pleurocera acuta Rafinesque, 1831 Sharp Hornsnail CS G5 AR, IA, IL, IN, KS, KY, LA, MI, MN, MO, MS, NE, NY, OH, PA, TN, VT, WI, WV. Canada, ON, QC.
Pleurocera alveare (Conrad, 1834) Rugged Hornsnail CS G4 AL, AR, IL, IN, KY, MO, MS, TN
Pleurocera annulifera (Conrad, 1834) Ringed Hornsnail V G3 AL
Pleurocera brumbyi (Lea, 1852) Spiral Hornsnail T G2 AL
Pleurocera canaliculata (Say, 1821) Silty Hornsnail CS G5 AL, AR, IL, IN, KY, LA, MS, OH, PA, TN, VA, WV
Pleurocera corpulenta Anthony, 1854 Corpulent Hornsnail E G1 AL, TN
Pleurocera curta (Haldeman, 1841) Shortspire Hornsnail T G2 AL, KY, TN
Pleurocera foremani (Lea, 1843) Rough Hornsnail E G1 E AL
Pleurocera gradata (Anthony, 1854) Bottle Hornsnail V G3 TN, VA
Pleurocera nobilis (Lea, 1845) Noble Hornsnail T G2Q AL, TN
Pleurocera parva (Lea, 1862) Dainty Hornsnail V G3 NC, TN
Pleurocera postelli (Lea, 1862) Broken Hornsnail T G2 AL
Pleurocera prasinata (Conrad, 1834) Smooth Hornsnail CS G4 AL
Pleurocera pyrenella (Conrad, 1834) Skirted Hornsnail T G2 AL, GA
Pleurocera showalteri (Lea, 1862) Upland Hornsnail T G2Q AL, GA
Pleurocera striatum (Lea, 1863) Striate Hornsnail T G2Q AL, TN
Pleurocera trochiformis (Conrad, 1834) Sulcate Hornsnail T G2Q AL, GA, TN
Pleurocera uncialis (Reeve, 1861) Pagoda Hornsnail CS G4 NC, TN, VA
Pleurocera vestita (Conrad, 1834) Brook Hornsnail V G3 AL, GA
Pleurocera walkeri Goodrich, 1928 Telescope Hornsnail V G3 AL, GA, KY, TN
Family Semisulcospiridae 1 Genus 11 Species
Juga acutifilosa (Stearns, 1890) Topaz Juga T G2 CA, OR
Juga bulbosa (Gould, 1847) Bulb Juga E G1 OR
Juga chacei (Henderson, 1935) Chace Juga E G1 CA, OR
Juga hemphilli (Henderson, 1935) Barrren Juga T G2 OR, WA. Canada, BC.
Juga interioris (Goodrich, 1944) Smooth Juga E G1 NV
Juga laurae (Goodrich, 1944) Oasis Juga E G1 CA, NV
Juga newberryi (Lea, 1860) Banded Juga E G1 OR
Juga nigrina (Lea, 1856) Black Juga V G3 CA, NV, OR
Juga occata (Hinds, 1844) Scalloped Juga E G1 CA
Juga plicifera (Lea, 1838) Pleated Juga V G3 CA, OR, WA. Canada, BC.
Juga silicula (Gould, 1847) Glassy Juga CS G4 WA. Canada, BC.
Family Pomatiopsidae 1 Genus 6 Species
Pomatiopsis binneyi Tryon, 1863 Robust Walker E G1 CA, OR
Pomatiopsis californica Pilsbry, 1899 Pacific Walker E G1 CA, OR
Pomatiopsis chacei Pilsbry, 1937 Marsh Walker E G1 CA, OR
Pomatiopsis cincinnatiensis (Lea, 1840) Brown Walker CS G4 IA, IL, IN, KY, MI, OH, TN, VA
Pomatiopsis hinkleyi Pilsbry, 1896 Tennessee River Walker X GXQ AL, TN
Pomatiopsis lapidaria (Say, 1817) Slender Walker CS G5 AL, AR, CT, DE, GA, FL, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NJ, NM, NY, OH, OK, PA, SC, SD, TN, TX, VA, WI, WV. Canada, ON, QC.
Family Valvatidae 1 Genus 10 Species
Valvata bicarinata Lea, 1841 Two-ridge Valvata CS G5 AL, AR, GA, IA, IL, IN, KY, MI, NC, NJ, NY, PA, TN, VA, WI
Valvata humeralis Say, 1829 Glossy Valvata CS G5Q AZ, CA, CO, ID, MT, NV, OR, UT, WA, WY. Canada, BC.
Valvata lewisi Currier, 1868 Fringed Valvata CS G5 AK, IA, IN, ME, MI, MN, MT, NY, VT, WA, WI. Canada, AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT.
Valvata mergella Westerlund, 1883 Rams-horn Valvata T G2 AK, WA. Canada, BC.
Valvata perdepressa Walker, 1906 Purplecap Valvata V G3 IL, IN, MI, NY, OH, PA, WI. Canada, ON.
Valvata sincera Say, 1824 Mossy Valvata CS G5 AK, CO, CT, IA, ID, IL, IN, MA, ME, MI, MN, MT, NC, ND, NH, NY, PA, SD, VT, WI, WY. Canada, AB, BC, LB, MB, NT, NU, ON, QC, SK, YT.
Valvata tricarinata (Say, 1817) Threeridge Valvata CS G5 AR, CT, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MT, ND, NE, NH, NJ, NY, OH, PA, RI, SD, VA, VT, WA, WI, WY. Canada, AB, BC, MB, NB, NT, ON, QC, SK.
Valvata utahensis Call, 1884 Desert Valvata E G1 ID, UT
Valvata virens Tryon, 1863 Emerald Valvata Xp GH CA
Valvata winnebagoensis Baker, 1928 Flanged Valvata T G2   MI, MN, WI. Canada, ON.