Geoduck
Panopea generosa
- Usual depth14–31 m
- Water temperature9–14 °C
- Best monthsJune, August, and September
- How commonCommon
Photo credit: (c) James St. John, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
The Pacific geoduck is a species of very large saltwater clam in the family Hiatellidae. The common name is derived from the Lushootseed name, gʷidəq.
Text from the Wikipedia article “Geoduck”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 6 records
- February: 930 records
- March: 31 records
- April: 57 records
- May: 1,603 records
- June: 3,579 records
- July: 2,249 records
- August: 2,930 records
- September: 3,651 records
- October: 963 records
- November: 7 records
- December: 427 records
Depth and water temperature
Depth
Mostly recorded at 14–31 m · Deepest record: 42.1 m
Water temperature
Recorded in surface water of 9–14 °C
Photos
(c) James St. John, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Steve Taylor, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Steve Taylor, some rights reserved (CC BY) · CC BY · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist
Names and classification
- English
- Geoduck, geoduck, Pacific geoduck, 太平洋潛泥蛤 (象拔蚌)
Names in 5 more languages
- German
- Elefantenrüsselmuschel
- Spanish
- Almeja chiluda, Almeja generosa
- Japanese
- アメリカナミガイ
- Korean
- 코끼리조개
- Simplified Chinese
- 象拔蚌
Similar species
Deepwater ClamPanopea zelandica
Arctic hiatellaHiatella arctica
Australian Rock-BorerHiatella australis
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).
- 16,479 open-data records from 1941 to 2025.
- Species data updated November 5, 2026.
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