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Molluscs › Margaritidae

Pearly Topshell

Margarites helicinus

Wildlife study photograph from iNaturalist.
(c) chlorophilia, 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.

Photos you add are credited to you, and you keep the copyright.

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 Alaska.January 100, February 74, March 115, April 181, May 262, June 285, July 305, August 262, September 193, October 144, November 79, December 61.
United States2,200
Alaska2,059
Canada708
Quebec120
New Brunswick106
Maine99
British Columbia98
Nova Scotia58
Manitoba35
Massachusetts31

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
OrderTrochida
FamilyMargaritidae
GenusGlobe Snails · Margarites

Sources

Remember the name next time.

Practise Pearly Topshell with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.