White Ridged Limpet

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 25 records
February: 28 records
March: 25 records
April: 24 records
May: 28 records
June: 14 records
July: 21 records
August: 20 records
September: 16 records
October: 27 records
November: 16 records
December: 29 records

Depth and water temperature

Water temperature

Recorded in surface water of 15–23 °C

14–16 °C: 8 records
16–18 °C: 40 records
18–20 °C: 39 records
20–22 °C: 57 records
22–24 °C: 13 records

Photos

(c) Thomas Mesaglio, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Thomas Mesaglio, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Gary Williams, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Alesha Teitzel, some rights reserved (CC BY) · CC BY · iNaturalist
(c) James K. Douch, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) James K. Douch, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) TonyT, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: White Ridged Limpet

Names in 1 more languages

Japanese: カノコウノアシ

Other scientific names: Acmaea mufria

Similar species

Tall-ribbed Limpet
Patelloida alticostata
Maltese cross limpet
Patelloida insignis
Pied limpet
Patelloida latistrigata
Pacific sugar limpet
Patelloida saccharina
Patelloida heroldi
Little-cone Limpet
Patelloida conulus

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.
Conservation status as published by GBIF (IUCN Red List).
216 open-data records from 1874 to 2010.
Species data updated November 5, 2026.