Keyhole limpet
Diodora ruppellii
- Usual depth50 m
- Water temperature24–30 °C
- Best monthsJanuary, April, and July
- How commonRare
About this species
Diodora ruppellii, Rüppell's keyhole limpet, is a species of sea snail, a marine gastropod mollusc in the family Fissurellidae, the keyhole limpets.
Text from the Wikipedia article “Diodora ruppellii”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
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Best months
Worldwide (open data)
- January: 8 records
- February: 1 records
- March: 1 records
- April: 5 records
- May: 5 records
- June: 3 records
- July: 6 records
- August: 2 records
- September: 2 records
- October: 2 records
- November: 3 records
- December: 1 records
Depth and water temperature
Depth
Mostly recorded at 50 m · Deepest record: 50 m
Water temperature
Recorded in surface water of 24–30 °C
Names and classification
- English
- Keyhole limpet
Other scientific names: Capiluna ruepellii, Capiluna ruppelli, Diodora rueppellii, Diodora rupelli, Fissurella nigriradiata, Fissurella reticulata, Fissurella ruppellii, Glyphis nigriradiata, Glyphis rüppelli
Similar species
Latticed Keyhole LimpetDiodora lineata
Cross Keynote LimpetDiodora quadriradiata
Sources and credits
Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).
- Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
- Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
- Conservation status as published by GBIF (IUCN Red List).
- 138 open-data records from 1834 to 2012.
- Species data updated November 2, 2026.
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