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Molluscs › Keyhole Limpets

Rough Keyhole Limpet

Diodora aspera

3,761 observations in the source records

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Wildlife study photograph from iNaturalist.
(c) jeremy_jodoin, 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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What the records say

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 314, February 272, March 283, April 352, May 341, June 251, July 215, August 219, September 278, October 284, November 365, December 282.
United States4,931
California3,437
Canada1,229
British Columbia1,225
Washington835
Oregon241
Alaska202
Nevada3
Saskatchewan2
Nunavut2

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
OrderLepetellida
FamilyKeyhole Limpets · Fissurellidae
GenusDiodora

Sources

Remember the name next time.

Practise Rough Keyhole Limpet 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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