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Molluscs › Frog Snails

California frog shell

Crossata californica

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

25 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 California.January 45, February 39, March 40, April 50, May 49, June 36, July 31, August 31, September 40, October 41, November 52, December 40.
United States495
California494
Mexico4
Baja California4
Nevada1

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
OrderLittorinimorpha
FamilyFrog Snails · Bursidae
GenusCrossata

Sources

Remember the name next time.

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