weathervane scallop
Nameweathervane scallop
Scientific NamePecten caurinus Gould, 1850
Common Nameweathervane scallop
FamilyPectinidae
GenusPecten
Speciescaurinus
Geographic DistributionNorth Pacific Ocean, specifically along the west coast of North America, ranging from Alaska south to northern California.
Habitatsubtidal
Average Size (mm)150
Identifying FeaturesDistinguished by its large size, prominent and rounded radial ribs (12-18), unequal valves (flatter right valve, more convex left valve), and unequal auricles. The characteristic reddish-brown to orange coloration of the upper valve is also a key identifier.
Dietfilter-feeder
Raritycommon
Author CitationGould, 1850
Description
The image displays two views (exterior and interior) of two valves of a large scallop shell. The shells are distinctly fan-shaped, characterized by prominent, rounded radial ribs that extend from the umbo to the shell margin. The exterior of one valve shows a reddish-brown to orange coloration, while the other is lighter, appearing cream to off-white, with some subtle reddish-orange hues. The interior surfaces of both valves are predominantly white or cream. The shells feature distinct, unequal auricles (ears) on either side of the umbo.
