Gyraulus parvus

Gyraulus parvus is a species of freshwater snail in the family Planorbidae, the ram's horn snails. It is known by the common name ash gyro. It is native to much of North America and the Caribbean, where it occurs in Canada, the United States, Mexico, Cuba, and Puerto Rico. It is also an introduced species in Eurasia, including Austria, the Czech Republic, France, Germany, and Israel.


Gyraulus parvus is a species of freshwater snail in the family Planorbidae, the ram's horn snails. It is known by the common name ash gyro. It is native to much of North America and the Caribbean, where it occurs in Canada, the United States, Mexico, Cuba, and Puerto Rico. It is also an introduced species in Eurasia, including Austria, the Czech Republic, France, Germany, and Israel.
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