Pennsylvania Land Snails

* = non-native species

Taxonomic Index

Below are all of Pennsylvania’s land snails, listed systematically. You can sample the state’s land snail diversity by clicking on highlighted species names.


Helicinidae
Hendersonia occulta (Say, 1831)

Pomatiopsidae
Pomatiopsis lapidaria (Say, 1817)

Ellobiidae
Carychium clappi Hubricht, 1959
Carychium exiguum (Say, 1822)
Carychium exile I. Lea, 1842
Carychium nannodes G.H. Clapp, 1905

Succineidae
Catinella oklahomarum (Webb, 1953)
Catinella vermeta (Say, 1829)
Novisuccinea ovalis (Say, 1817)
Oxyloma retusum (I. Lea, 1834)
Oxyloma subeffusum Pilsbry, 1948
Succinea putris (Linnaeus, 1758)

Cionellidae
Cochlicopa lubrica (Müller, 1774)
Cochlicopa lubricella (Porro, 1838)
Cochlicopa morseana (Doherty, 1878)

Pupillidae
Pupoides albilabris (C.B. Adams, 1841)

Strobilopsidae
Strobilops aeneus Pilsbry, 1926
Strobilops affinis Pilsbry, 1893
Strobilops labyrinthicus (Say, 1817)
Strobilops texasiana Pilsbry & Ferriss, 1906

Valloniidae
Vallonia costata (Müller, 1774)
Vallonia excentrica Sterki, 1893
Vallonia pulchella (Müller, 1774)

Vertiginidae
Columella simplex (Gould, 1840)
Gastrocopta armifera (Say, 1821)
Gastrocopta contracta (Say, 1822)
Gastrocopta corticaria (Say, 1816)
Gastrocopta pentodon (Say, 1822)
Gastrocopta tappaniana (C.B. Adams, 1842)
Vertigo bollesiana (E.S. Morse, 1865)
Vertigo gouldi (A. Binney, 1843)
Vertigo milium (Gould, 1840)
Vertigo ovata Say, 1822
Vertigo pygmaea (Draparnaud, 1801)
Vertigo tridentata Wolf, 1870
Vertigo ventricosa (E.S. Morse, 1865)

Ferussaciidae
Cecilioides acicula (Müller, 1774) *

Haplotrematidae
Haplotrema concavum (Say, 1821)

Testacellidae
Testacella haliotidea Draparnaud, 1801 *

Punctidae
Punctum minutissimum (I. Lea, 1841)
Punctum vitreum (H.B. Baker, 1930)

Discidae
Anguispira alternata (Say, 1816)
Anguispira fergusoni (Bland, 1861)
Anguispira kochi (Pfeiffer, 1821)
Discus catskillensis (Pilsbry, 1896)
Discus patulus (Deshayes, 1830)
Discus rotundatus (Müller, 1774) *
Discus whitneyi (Newcomb, 1864)

Helicodiscidae
Helicodiscus parallelus (Say, 1817)
Helicodiscus shimeki Hubricht, 1962
Lucilla singleyana (Pilsbry, 1889)

Gastrodontidae
Gastrodonta interna (Say, 1822)
Striatura exigua (Stimpson, 1850)
Striatura ferrea E.S. Morse, 1864
Striatura meridionalis (Pilsbry and Ferriss, 1906)
Striatura milium (E.S. Morse, 1859)
Ventridens demissus (A. Binney, 1843)
Ventridens gularis (Say, 1822)
Ventridens intertextus (A. Binney, 1841)
Ventridens ligera (Say, 1821)
Ventridens suppressus (Say, 1829)
Ventridens virginicus (Vanatta, 1936)
Zonitoides arboreus (Say, 1816)
Zonitoides nitidus (Müller, 1774)

Euconulidae
Euconulus dentatus (Sterki, 1893)
Euconulus fulvus (Müller, 1774)
Euconulus polygyratus (Pilsbry, 1899)
Guppya sterkii (Dall, 1888)

Oxychilidae
Oxychilus cellarius (Müller, 1774) *
Oxychilus draparnaudi (Beck, 1937) *

Pristilomatidae
Hawaiia alachuana (Dall, 1885)
Hawaiia minuscula (A. Binney, 1841)
Paravitrea multidentata (A. Binney, 1840)

Milacidae
Milax gagates (Draparnaud, 1801) *

Zonitidae
Glyphyalinia indentata (Say, 1823)
Glyphyalinia rhoadsi (Pilsbry, 1899)
Glyphyalinia wheatleyi (Bland, 1883)
Mesomphix cupreus (Rafinesque, 1831)
Mesomphix inornatus (Say, 1821)
Mesomphix perlaevis (Pilsbry, 1900)
Nesovitrea binneyana (E.S. Morse, 1864)
Nesovitrea electrina (Gould, 1841)

Limacidae
Lehmannia valentiana (Férussac, 1821) *
Limax maximus Linnaeus, 1758 *

Agriolimacidae
Deroceras laeve (Müller, 1774)
Deroceras reticulatum (Müller, 1774) *

Vitrinidae
Vitrina angelicae Beck, 1837

Arionidae
Arion circumscriptus Johnston, 1828 *
Arion distinctus Mabille, 1868 *
Arion hortensis Férussac, 1819 *
Arion intermedius (Normand, 1852) *
Arion subfuscus (Draparnaud, 1805) *

Philomycidae
Megapallifera mutabilis (Hubricht, 1951)
Pallifera dorsalis (A. Binney, 1842)
Pallifera ohioensis (Sterki, 1908)
Pallifera secreta (Cockerell, 1900)
Philomycus carolinianus (Bosc, 1802)
Philomycus flexuolaris Rafinesque, 1820
Philomycus togatus (Gould, 1841)

Helicidae
Cepaea nemoralis (Linnaeus, 1758) *

Polygyridae
Allogona profunda (Say, 1821)
Appalachina sayana (Pilsbry, 1906)
Euchemotrema fraternum (Say, 1824)
Euchemotrema leai (A. Binney, 1841)
Inflectarius inflecta (Say, 1821)
Mesodon clausus (Say, 1821)
Mesodon elevatus (Say, 1821)
Mesodon mitchellianus (I. Lea, 1839)
Mesodon thyroidus (Say, 1816)
Mesodon zaletus (A. Binney, 1837)
Neohelix albolabris (Say, 1817)
Neohelix dentifera (A. Binney, 1837)
Patera laevior (Pilsbry, 1940)
Patera pennsylvanica (Green, 1827)
Stenotrema barbatum (G.H. Clapp, 1904)
Stenotrema edvardsi (Bland, 1856)
Stenotrema hirsutum (Say, 1817)
Triodopsis fallax (Say, 1825)
Triodopsis fraudulenta (Pilsbry, 1894)
Triodopsis juxtidens (Pilsbry, 1894)
Triodopsis picea Hubricht, 1958 (literature reports but no PA specimens, status uncertain)
Triodopsis tridentata (Say, 1816)
Triodopsis vulgata Pilsbry, 1940
Webbhelix multilineata (Say, 1821)
Xolotrema denotatum (Férussac, 1821)

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