Geoduck
NameGeoduck
Scientific NamePanopea generosa
Common NameGeoduck, Pacific Geoduck
FamilyHiatellidae
GenusPanopea
SpeciesPanopea generosa
Geographic DistributionEastern Pacific Ocean, ranging from Alaska to Baja California.
Habitatintertidal
Average Size (mm)150
Identifying FeaturesLarge size, thick and robust shell, prominent concentric growth lines, oblong shape, and gaping valves. The shell is relatively small compared to the animal's extremely long, fused siphons (not visible in a shell-only image).
Dietfilter-feeder
Raritycommon
Author CitationGould, 1850
Description
A large, thick-shelled marine bivalve, commonly known as the Pacific Geoduck. The shell is oblong to somewhat rectangular, robust, and typically gapes at both ends. It features prominent concentric growth lines. This specimen appears to be a fossilized or heavily weathered shell, showing a grayish-brown coloration consistent with sediment staining.
