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Tortoise Cowry

Chelycypraea testudinaria

  • Molluscs
  • IUCN: Not evaluated
  • Usual depth10–13 m
  • Water temperature25–30 °C
  • Best monthsJuly
  • How commonRare
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Photo credit: (c) Leon Perrie, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

Chelycypraea testudinaria, common name the tortoise cowry, is a species of sea snail, a cowry, a marine gastropod mollusc in the family Cypraeidae, the cowries. It is the only species in the genus Chelycpraea.

Text from the Wikipedia article “Chelycypraea”, 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: 9 records
  • February: 15 records
  • March: 3 records
  • April: 2 records
  • May: 7 records
  • June: 11 records
  • July: 47 records
  • August: 12 records
  • September: 9 records
  • October: 9 records
  • November: 3 records
  • December: 4 records

Depth and water temperature

Depth

Mostly recorded at 10–13 m · Deepest record: 13 m

  • 10–20 m: 7 records

Water temperature

Recorded in surface water of 25–30 °C

  • 24–26 °C: 9 records
  • 26–28 °C: 39 records
  • 28–30 °C: 128 records

Names and classification

English
Tortoise Cowry, Tortoise Shell Cowry
Names in 2 more languages
Japanese
ムラクモダカラ
Simplified Chinese
叢雲寶螺

Other scientific names: Callistocypraea (Chelycypraea) testudinaria, Callistocypraea testudinaria, Cypraea testudinaria, Cypraea testudinosa

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).
  • 238 open-data records from 1758 to 2006.
  • Species data updated October 26, 2026.

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