Turtle Limpet

About this species

Cellana testudinaria is a species of sea snail, a marine gastropod mollusk in the family Nacellidae.

Text from the Wikipedia article “Cellana testudinaria”, 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: 11 records
February: 6 records
March: 11 records
April: 8 records
May: 8 records
June: 9 records
July: 21 records
August: 10 records
September: 22 records
October: 18 records
November: 7 records
December: 9 records

Depth and water temperature

Depth

Mostly recorded at 2–7 m · Deepest record: 6.5 m

0–10 m: 3 records

Water temperature

Recorded in surface water of 17–30 °C

16–18 °C: 1 records
18–20 °C: 2 records
20–22 °C: 0 records
22–24 °C: 1 records
24–26 °C: 11 records
26–28 °C: 7 records
28–30 °C: 37 records

Photos

(c) Cheryl Stinchcomb, some rights reserved (CC BY), uploaded by Cheryl Stinchcomb · CC BY · iNaturalist
(c) Lena Struwe, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Saryu Mae 前朝琉, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Jessica Utrup, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Lawrence Hylton, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Takaaki Hattori, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Jessica Utrup, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Turtle Limpet

Names in 3 more languages

Japanese: オオベッコウガサ
Thai: หอยฝาชี, หอยหมวกจีนลายเต่า
Simplified Chinese: 龜甲笠螺

Other scientific names: Helcioniscus mestayeri, Patella testudinaria

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