Freshwater Snails of Illinois

Freshwater Snails of Illinois

The following lists were compiled by Kevin Cummings, Alison Stodola, Jeremy Tiemann, and Rachel Vinsel. Distributional data, scientific, and common names follow Johnson et al. (2013) with updates from MolluscaBase (2018).

Special status includes S – state threatened, SE – state endangered, FT – federally threatened, FE – federally endangered, X – extirpated, (†) – extinct, SGNC – Species in Greatest Need of Conservation (IL Wildlife Action Plan), I- introduced/non-native

Class Gastropoda – Freshwater Snails (76 species)

Clade Caenogastropoda

Family Amnicolidae (3 species)

Amnicola limosa (Say, 1817) – Mud Amnicola
Lyogyrus pilsbryi Walker, 1906 – Lake Duskysnail
Lyogyrus walkeri Pilsbry, 1898 – Canadian Duskysnail

Family Bithyniidae (1 species)

Bithynia tentaculata (Linnaeus, 1758) – Mud Bithynia I

Family Hydrobiidae (12 species)

Birgella subglobosus (Say, 1825) – Globe Siltsnail
Cincinnatia integra (Say, 1821) – Midland Siltnail SGNC
Fontigens aldrichi (Call & Beecher, 1886) – Hoosier Amnicola SGNC
Fontigens antroecetes (Hubricht, 1940) – Enigmatic Cavesnail SE
Fontigens nickliniana (Lea, 1839) – Watercress Snail
Hoyia sheldoni (Pilsbry, 1890) – Storm Hydrobe
Marstonia lustrica (Pilsbry, 1890) – Boreal Marstonia
Marstonia scalariformis (Wolf, 1870) – Moss Pyrg SGNC
Probythinella emarginata (Kuster, 1852) – Delta Hydrobe
Somatogyrus depressus (Tryon, 1862) – Sandbar Pebblesnail SGNC
Somatogyrus integra (Say, 1829) – Ohio Pebblesnail

Somatogyrus tryoni Pilsbry & Baker, 1927 – Coldwater Pebblesnail

Family Pleuroceridae (12 species)

Elimia costifera (Reeve, 1861) – Corded Elimia
Elimia livesens (Menke, 1830) – Liver Elimia
Elimia semicarinata (Say, 1829) – Fine-ridged Elimia
Leptoxis praerosa (Say, 1821) – Onyx Rocksnail SE
Leptoxis trilineata (Say, 1829) – Broad Mudalia
Lithasia armigera (Say, 1821) – Armored Rocksnail SGNC
Lithasia geniculata Haldeman 1840 – Ornate Rocksnail SGNC
Lithasia obovata (Say, 1829) – Shawnee Rocksnail SE
Lithasia verrucosa (Rafinesque, 1820) – Vericose Rocksnail
Pleurocera acuta Rafinesque, 1831 – Sharp Hornsnail
Pleurocera alveare (Conrad, 1834) – Rugged Hornsnail SGNC
Pleurocera canaliculata (Say, 1821) – Silty Hornsnail

Family Pomatiopsidae (2 species)

Pomatiopsis cincinnatiensis (Lea, 1840) – Brown Walker
Pomatiopsis lapidaria (Say, 1817) – Slender Walker 

Family Viviparidae (8 species)

Campeloma crassulum Rafinesque, 1819 – Ponderous Campeloma
Campeloma decisum (Say, 1816) – Pointed Campeloma
Campeloma rufum (Haldeman, 1841) – [uncertain classification]
Lioplax sulculosa (Menke, 1827) – Furowed Lioplax
Viviparus georgianus (Lea, 1834) – Banded Mysteryshell
Viviparus intertextus (Say, 1829) – Rotund Mysteryshell SGNC
Viviparus subpurpureus (Say, 1829) – Olive Mysteryshell SGNC
Cipangopaludina chinensis (Reeve, 1863) – Chinese Mysteryshell I

Clade Heterobranchia   

Family Lymnaeidae (18 species)

Acella haldemani (Binney, 1867) – Spindle Lymnaea
Galba dalli (Baker, 1907) – Dusky Fossaria
Galba exigua (Lea, 1841) – Graceful Fossaria
Galba humilis (Say, 1822) – Marsh Fossaria
Galba modicella (Say, 1825) – Rock Fossaria
Galba obrussa (Say, 1825) – Golden Fossaria
Galba parva (Lea, 1841) – Pygmy Fossaria
Galba rustica (Lea, 1841) – Rusty Fossaria
Galba tazewelliana (Wolf, 1870) – Tazewell Fossaria
Lymnaea stagnalis Linnaeus, 1758 – Swamp Lymnaea
Pseudosuccinea columella (Say, 1817) – Mimic Lymnaea
Radix auricularia (Linnaeus, 1758) – Big-ear Radix I
Stagnicola caperatus (Say, 1829) – Wrinkled Marshsnail
Stagnicola catascopium (Say, 1817) – Woodland Pondsnail
Stagnicola elodes (Say, 1821) – Marsh Pondsnail
Stagnicola exilis (Lea, 1834) – Flat-Whorled Pondsnail
Stagnicola walkeriana Baker, 1926 – Calabash Pondsnail
Stagnicola woodruffi (Baker 1901) – Coldwater Pondsnail SGNC

Family Physidae (6 species)

Aplexa elongata (Say, 1821) – Lance Aplexa
Physa skinneri Taylor, 1954 – Glass Physa

Physella gyrina (Say, 1821) – Tadpole Physa
Physella heterostropha (Say, 1817) – Pewter Physa
Physella integra (Haldeman, 1841) – Ashy Physa
Physella virgata (Gould, 1855) – Protean Physa

Family Planorbidae (16 species) – includes species formerly in Ancylidae (Bouchet & Rocroi 2005)

Biomphalaria glabrata (Say, 1818) – Bloodfluke Planorb I
Ferrissia fragilis (Tryon, 1863) – Fragile Ancylid
Ferrissia rivularis (Say, 1817) – Creeping Ancylid
Gyraulus deflectus (Say, 1824) – Flexed Gyro
Gyraulus parvus (Say, 1817) – Ash Gyro
Helisoma anceps (Menke, 1830) – Two-ridge Rams-horn
Laevapex fuscus (C.B. Adams, 1841) – Dusky Ancyliid
Menetus (Dilatata) dilatatus (Gould, 1841) – Bugle Sprite
Menetus (Dilatata) sampsoni (Ancey, 1885) SGNC
Planorbella campanulata (Say, 1821) – Bellmouth Rams-horn
Planorbella trivolvis (Say, 1817) – Marsh Rams-horn
Planorbella truncata (Miles, 1861) – Druid Rams-horn
Planorbula armigera (Say, 1821) – Thicklip Rams-horn
Promenetus exacuous (Say, 1821) – Sharp Sprite
Promenetus umbilicatellus (Cockerell, 1887) – Umbilicate Sprite
Rhodacmea hinkleyi (Walker, 1908) – Knobby Ancylid

Family Valvatidae (5 species)

Valvata bicarinata Lea, 1841 – Two-ridge Valvata
Valvata lewisi Currier, 1868 – Fringed Valvata
Valvata perdepressa Walker, 1906 – Purplecap Valvata SGNC
Valvata sincera Say, 1824 – Mossy Valvata
Valvata tricarinata (Say, 1817) – Threeridge Valvata

 

Literature Cited

Johnson, P.D., A.E. Bogan, K.M. Brown, N.M. Burkhead, J.R. Cordeiro, J.T. Garner, P.D. Hartfield, D.A.W. Lepitzki, G.L. Mackie, E. Pip, T.A. Tarpley, J.S. Tiemann, N.V. Whelan, and E.E. Strong. 2013. Conservation Status of Freshwater Gastropods of Canada and the United States. Fisheries 38:247-282.

MolluscaBase (2018). Accessed at http://www.molluscabase.org on 2018-11-08