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Walsh's White Slipper Limpet

Ergaea walshi

  • Molluscs
  • IUCN: Not evaluated
  • Usual depth2–46 m
  • Water temperature18–29 °C
  • Best monthsJuly and August
  • How commonRare
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Photo credit: (c) Shaunak Modi, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

Ergaea is a monotypic genus of sea snail in the family Calyptraeidae. Its sole accepted species is Ergaea walshi, commonly known as the eastern white slipper limpet. This marine species can be found along Vietnam and Japan. The size of an adult shell varies between 13 mm and 41 mm.

Text from the Wikipedia article “Ergaea”, 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: 3 records
  • February: 5 records
  • March: 3 records
  • April: 5 records
  • May: 7 records
  • June: 6 records
  • July: 11 records
  • August: 16 records
  • September: 9 records
  • October: 9 records
  • November: 7 records
  • December: 8 records

Depth and water temperature

Depth

Mostly recorded at 2–46 m · Deepest record: 60 m

  • 0–10 m: 4 records
  • 10–20 m: 1 records
  • 20–30 m: 1 records
  • 30–40 m: 1 records
  • 40–50 m: 3 records
  • 50–60 m: 0 records
  • 60–70 m: 1 records

Water temperature

Recorded in surface water of 18–29 °C

  • 18–20 °C: 9 records
  • 20–22 °C: 1 records
  • 22–24 °C: 4 records
  • 24–26 °C: 5 records
  • 26–28 °C: 34 records
  • 28–30 °C: 13 records

Names and classification

English
Walsh's White Slipper Limpet
Names in 3 more languages
Japanese
ヒラフネガイ
Korean
배고둥
Simplified Chinese
扁平管帽螺, 扁舟螺

Other scientific names: Calyptraea plana, Crepidula (Ergea) scutum, Crepidula excisa, Crepidula orbella, Crepidula ostraeiformis, Crepidula plana, Crepidula scabies, Crepidula walshi, Crypta (Ergaea) walshi, Crypta lamellosa, Crypta walshi, Siphopatella walshi

Similar species

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).
  • 188 open-data records from 1858 to 2021.
  • Species data updated November 2, 2026.

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