Australian Mactra

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 26 records
February: 35 records
March: 23 records
April: 23 records
May: 15 records
June: 12 records
July: 28 records
August: 40 records
September: 37 records
October: 48 records
November: 168 records
December: 92 records

Depth and water temperature

Depth

Mostly recorded at 28–78 m · Deepest record: 78 m

20–30 m: 3 records
30–40 m: 0 records
40–50 m: 6 records
50–60 m: 0 records
60–70 m: 0 records
70–80 m: 3 records

Water temperature

Recorded in surface water of 15–27 °C

14–16 °C: 25 records
16–18 °C: 14 records
18–20 °C: 12 records
20–22 °C: 3 records
22–24 °C: 0 records
24–26 °C: 0 records
26–28 °C: 2 records

Photos

(c) tessskye, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Cobi Calyx, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Colin Meurk, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Lesley Marrion-Cole, some rights reserved (CC BY) · CC BY · iNaturalist
(c) ttsquid, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Caleb Catto, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Australian Mactra, Polished Trough Shell

Other scientific names: Mactra polita

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.
Conservation status as published by GBIF (IUCN Red List).
180 open-data records from 1943 to 2014.
Species data updated November 4, 2026.