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Planorbidae

Family Planorbidae

16 species

River Limpet

Group: Molluscs
Peak month: September
Records since 2000: 4,616

Great Ramshorn

Group: Molluscs
Peak month: May
Records since 2000: 2,449

Whirlpool Ramshorn

Group: Molluscs
Peak month: June
Records since 2000: 2,334

Margined Ramshorn

Group: Molluscs
Peak month: May
Records since 2000: 2,217

Keeled Ramshorn

Group: Molluscs
Peak month: July
Records since 2000: 1,813

Twisted Ramshorn

Group: Molluscs
Peak month: May
Records since 2000: 1,674

White Ramshorn

Group: Molluscs
Peak month: July
Records since 2000: 1,347

Flat Ramshorn

Group: Molluscs
Peak month: May
Records since 2000: 1,058

White-lipped Ramshorn

Group: Molluscs
Peak month: May
Records since 2000: 818

Star Gyro

Group: Molluscs
Peak month: May
Records since 2000: 772

Ferrissia californica

Group: Molluscs
Peak month: October
Records since 2000: 258

Ash Gyro

Group: Molluscs
Peak month: July
Records since 2000: 230

The Shining Ram's-horn Snail

Group: Molluscs
Peak month: May
Records since 2000: 223

Lesser Ramshorn Snail

Group: Molluscs
Peak month: May
Records since 2000: 107

Gyraulus acronicus

Group: Molluscs
Peak month: July
Records since 2000: 99

Menetus dilatatus

Group: Molluscs
Peak month: August
Records since 2000: 62