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Molluscs › Ramshorn snails

Two-ridged Ramshorn

Helisoma anceps

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Wildlife study photograph from iNaturalist.
(c) teakettle_wren, some rights reserved (CC BY-NC)

28 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

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Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in Ontario.January 45, February 46, March 73, April 142, May 273, June 128, July 96, August 87, September 92, October 75, November 47, December 42.
United States4,124
Canada1,690
Ontario1,146
New York758
Michigan510
Vermont435
Illinois267
Minnesota225
Quebec224
North Carolina220

Counts show where people looked, not only where it lives.

Traits

Physical

  • Shell-bearingProtected by a hard shellFrom its classification

Classification

KingdomAnimals · Animalia
PhylumMolluscs · Mollusca
ClassGastropods · Gastropoda
FamilyRamshorn snails · Planorbidae
GenusHelisoma

Sources

Remember the name next time.

Practise Two-ridged Ramshorn with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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