Antique ark

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 19 records
February: 22 records
March: 18 records
April: 14 records
May: 12 records
June: 22 records
July: 29 records
August: 33 records
September: 19 records
October: 15 records
November: 10 records
December: 23 records

Depth and water temperature

Depth

Mostly recorded at 5–41 m · Deepest record: 40.5 m

0–10 m: 1 records
10–20 m: 1 records
20–30 m: 1 records
30–40 m: 1 records
40–50 m: 1 records

Water temperature

Recorded in surface water of 20–30 °C

18–20 °C: 1 records
20–22 °C: 0 records
22–24 °C: 6 records
24–26 °C: 49 records
26–28 °C: 82 records
28–30 °C: 90 records

Photos

(c) linkie, some rights reserved (CC BY), uploaded by linkie · CC BY · iNaturalist
(c) Priyanshu Pradhan, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Valentin Moser, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Saryu Mae 前朝琉, some rights reserved (CC BY) · CC BY · iNaturalist
(c) portioid, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Nicole Kearney, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Antique ark, antique ark

Names in 1 more languages

Japanese: リュウキュウサルボウ

Other scientific names: Anadara (Anadara) antiquata, Anadara suggesta, Anomalocardia transversalis, Arca antiquata

Similar species

Kagoshima Blood Cockle
Anadara kagoshimensis
Sydney Cockle
Anadara trapezia
Anadara cornea
Anadara pilula
Close-Ribbed Ark
Anadara crebricostata
Anadara ehrenbergi

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).
517 open-data records from 1758 to 2024.
Species data updated October 26, 2026.