White Rock-clam

About this species

Cleidothaerus albidus is a bivalve mollusc of the family Cleidothaeridae, the only member of its genus and family. It is endemic to southeast Australia and the North Island of New Zealand, including the Chatham Islands.

Text from the Wikipedia article “Cleidothaerus”, 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: 116 records
February: 67 records
March: 62 records
April: 42 records
May: 59 records
June: 44 records
July: 45 records
August: 39 records
September: 95 records
October: 82 records
November: 87 records
December: 159 records

Depth and water temperature

Depth

Mostly recorded at 0–5 m · Deepest record: 38 m

0–10 m: 38 records
10–20 m: 0 records
20–30 m: 0 records
30–40 m: 1 records

Water temperature

Recorded in surface water of 13–26 °C

12–14 °C: 21 records
14–16 °C: 71 records
16–18 °C: 9 records
18–20 °C: 3 records
20–22 °C: 57 records
22–24 °C: 5 records
24–26 °C: 4 records
26–28 °C: 1 records

Photos

(c) Saryu Mae 前朝琉, some rights reserved (CC BY), uploaded by Saryu Mae 前朝琉 · CC BY · iNaturalist
(c) Thomas Mesaglio, some rights reserved (CC BY), uploaded by Thomas Mesaglio · CC BY · iNaturalist
(c) Thomas Mesaglio, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Thomas Mesaglio, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Javier, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Saryu Mae 前朝琉, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Rod Lowther, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: White Rock-clam

Other scientific names: Chama albida, Chama hemicardium, Cleidothaerus chamoides, Cleidothaerus maorianus

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).
354 open-data records from 1905 to 2023.
Species data updated November 1, 2026.