Irus griseus
- Usual depth0 m
- Water temperature14–16 °C
- Best monthsJanuary, April, and September
- How commonRare
Photo credit: (c) ttsquid, some rights reserved (CC BY) · CC BY · iNaturalist
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 39 records
- February: 19 records
- March: 25 records
- April: 31 records
- May: 18 records
- June: 19 records
- July: 16 records
- August: 17 records
- September: 40 records
- October: 17 records
- November: 14 records
- December: 25 records
Depth and water temperature
Depth
Mostly recorded at 0 m · Deepest record: 3.5 m
Water temperature
Recorded in surface water of 14–16 °C
Photos
(c) ttsquid, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) ttsquid, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
Other scientific names: Irus (Notopaphia) griseus, Notopaphia grisea, Venerupis diemenensis, Venerupis subdecussata, Venus grisea
Similar species
Cardita-like Boring-VenusIrus carditoides
Boring Venus ShellIrus crenatus
Irus clamIrus irus
Cuming's Boring-VenusIrus cumingii
New Zealand CockleAustrovenus stutchburyi
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).
- 329 open-data records from 1916 to 2014.
- Species data updated November 3, 2026.
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