Irus clam

About this species

Irus irus, also known as the irus clam, is a species of bivalve belonging to the family Veneridae.

Text from the Wikipedia article “Irus irus”, 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: 30 records
February: 42 records
March: 35 records
April: 44 records
May: 31 records
June: 36 records
July: 73 records
August: 56 records
September: 23 records
October: 53 records
November: 41 records
December: 15 records

Depth and water temperature

Depth

Mostly recorded at 3–30 m · Deepest record: 40 m

0–10 m: 14 records
10–20 m: 22 records
20–30 m: 31 records
30–40 m: 14 records
40–50 m: 2 records

Water temperature

Recorded in surface water of 12–29 °C

10–12 °C: 6 records
12–14 °C: 38 records
14–16 °C: 4 records
16–18 °C: 7 records
18–20 °C: 91 records
20–22 °C: 9 records
22–24 °C: 20 records
24–26 °C: 36 records
26–28 °C: 41 records
28–30 °C: 11 records

Photos

(c) JH, some rights reserved (CC BY), uploaded by JH · CC BY · iNaturalist
(c) Mathijs Zonneveld, some rights reserved (CC BY), uploaded by Mathijs Zonneveld · CC BY · iNaturalist
(c) Takaaki Hattori, some rights reserved (CC BY) · CC BY · iNaturalist
(c) anasacuta, some rights reserved (CC BY) · CC BY · iNaturalist
(c) JH, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Eridan Xharahi, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Irus clam, irus clam

Names in 1 more languages

German: Irusmuschel

Other scientific names: Cuneus foliatus, Donax irus, Irus (Irus) irus, Notirus irus, Pectunculus truncatus, Pullastra irus, Tellina cornubiensis, Venerupis (Irus) irus, Venerupis (Irus) pseudoirus, Venerupis attenuata, Venerupis chinensis, Venerupis derelicta, Venerupis digona, Venerupis irus, Venerupis irusianus, Venerupis multicostata, Venerupis pseudoirus, Venerupis pulcherrima

Similar species

Cardita-like Boring-Venus
Irus carditoides
Boring Venus Shell
Irus crenatus
Cuming's Boring-Venus
Irus cumingii
Irus griseus
Irus mitis
New Zealand Cockle
Austrovenus 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.
Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
Conservation status as published by GBIF (IUCN Red List).
743 open-data records from 1888 to 2019.
Species data updated November 3, 2026.