Assorted Worldwide Aquatic Species Page Three

Lithasia duttoniana (I. Lea, 1841) Helmet Rocksnail (tentative) Lithasia jayana (I. Lea, 1841) Rugose Rocksnail
Lithasia duttoniana (I. Lea, 1841) Helmet Rocksnail (tentative) Lithasia jayana (I. Lea, 1841) Rugose Rocksnail
Tennessee, USA Tennessee, USA
Helisoma newberryi (I. Lea, 1858) Great Basin Rams-horn
Lithasia jayana (I. Lea, 1841) Rugose Rocksnail Helisoma newberryi (I. Lea, 1858) Great Basin Rams-horn
Tennessee, USA California, USA
Pyrgulopsis nevadensis (Stearns, 1883) Corded Pyrg Planorbella pilsbryi (F. C. Baker, 1926) File Rams-horn

Pyrgulopsis nevadensis (Stearns, 1883) Corded Pyrg

Planorbella pilsbryi (F. C. Baker, 1926) File Rams-horn
Nevada, USA Wisconsin, USA

Fontigens cryptica Hubricht, 1963 Hidden Springsnail

Neritina granosa G. B. Sowerby I, 1825

Fontigens cryptica Hubricht, 1963 Hidden Springsnail

Neritina granosa G. B. Sowerby I, 1825
Kentucky, USA Hawaii, USA

Neritina latissima Broderip, 1833

Biomphalaria havanensis (Pfeiffer, 1839)

Neritina latissima Broderip, 1833

Biomphalaria havanensis (L. Pfeiffer, 1839) Ghost Rams-horn

Panama

Texas, USA

Lymnaea atkaensis Dall, 1884 Frigid Lymnaea

Lymnaea atkaensis Dall, 1884 Frigid Lymnaea

Lymnaea stagnalis Linnaeus, 1758 Swamp Lymnaea

Alaska, USA

Ontario, Canada

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