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| Aquatic Gastropods | |
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Pseudisidora producta (Mighels, 1845) |
| Pseudisidora rubella (Say, 1841) | |
| Floridobia winkleyi (Pilsbry, 1912) | |
| Pila species | |
| Marisa cornuarietis (Linnaeus, 1758) Giant Rams-horn | |
| Biomphalaria havanensis (Pfeiffer, 1839) Ghost Rams-horn | |
| Tiphobia horei E. A. Smith, 1880 | |
| Neritina latissima Broderip, 1833 | |
| Planorbella pilsbryi (F. C. Baker, 1926) File Rams-horn | |
| Planorbella truncata (M. Miles, 1861) Druid Rams-horn | |
| Lymnaea stagnalis Linnaeus, 1758 Swamp Lymnaea | |
| Lymnaea atkaensis Dall, 1884 Frigid Lymnaea | |
| Lanx subrotunda (Tyron,1856) Rotund Lanx | |
| Pyrgulopsis nevadensis (Stearns, 1883) Corded Pyrg | |
| Helisoma newberryi (I. Lea, 1858) Great Basin Rams-horn | |
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| Terrestrials Species - Page One | |
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Cepaea nemoralis (Linnaeus, 1758) |
| Achatina fulica (Bowdich, 1822) | |
| Peronaeus atacamensis (Pfeiffer, 1856) | |
| Plectostylus coquimbensis (Broderip, 1832) | |
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Cyclomorpha flava (Broderip, 1832) |
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| Mayaxis leei Thompson, 1995 | |
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| Terrestrials Species - Page Two | |
| Cerion huntingtoni Clench, 1938 | |
| Cerion eximeum (Maynard, 1894) | |
| Cerion fordii Pilsbry and Vanatta, 1897 | |
| Cerion platei Clench, 1933 | |
| Cerion felis Pilsbry and Vanatta, 1895/Cerion russelli (Clench, 1938) "hybrids" | |
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| Terrestrials Species - Page Three | |
| Hemitrochus varians (Menke, 1829) | |
| Bulimulus sepulchralis Poey, 1851 | |
| Plagioptycha duclosiana salvatoris (L. Pfeiffer, 1867) | |
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| Terrestrials Species - Page Four | |
| Oxyloma retusum (I. Lea, 1834) | |
| Mesomphix capnodes (W. G. Binney, 1857) | |
| Mesodon normalis (Pilsbry, 1900) Grand Globe | |
| Pupilla muscorum (Linnaeus, 1758) Widespread Column | |
| Cernuella virgata (Müller, 1774) Maritime Gardensnail | |
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| Terrestrials Species - Page Five | |
| Ariolimax columbianus (Gould, 1851) Banana Slug | |
| Haplotrema vancouverense (I. Lea, 1839) Robust Lancetooth | |
| Ancotrema sportella (Gould 1846) Beaded Lancetooth | |
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| Terrestrials Species - Page Six | |
| Cerion regina Pilsbry & Vanatta, 1895 | |
| Cerion yumaensis Pilsbry & Vanatta, 1895 | |
| Pleurodonte caracolla (Linnaeus, 1758) | |
| Liguus virgineus (Linnaeus, 1758) | |
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