subfamily
Ramshorn Snails
Planorbinae
Children
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Most observed native ramshorn snails All
Native to the US, by observations.
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Marsh Ramshorn
Planorbella trivolvis
8,381 observations
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Two-ridged Ramshorn
Helisoma anceps
443 observations
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Ash Gyro
Gyraulus parvus
228 observations
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Thicklip Ramshorn
Planorbula armigera
107 observations
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Sharp Sprite
Promenetus exacuous
56 observations
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Great Basin Ramshorn
Helisoma newberryi
46 observations
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Flexed Gyro
Gyraulus deflectus
42 observations
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Disc Gyro
Gyraulus circumstriatus
30 observations
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Rough Ramshorn
Planorbella subcrenata
24 observations
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Borax Lake Rams-horn
Planorbella oregonensis
17 observations
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Mexican Ramshorn
Planorbella tenuis
6 observations
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Coarse Ramshorn
Planorbella binneyi
2 observations