Plicopurpura columellaris
NamePlicopurpura columellaris
Scientific NamePlicopurpura columellaris
Common NameColumellar Rock Snail
FamilyMuricidae
GenusPlicopurpura
Speciescolumellaris
Geographic DistributionEastern Pacific Ocean, ranging from Baja California, Mexico, southwards along the coast of Central America to Peru.
Habitatintertidal
Shell Shapeconical
Average Size (mm)20-50
Identifying FeaturesStrong spiral cords and prominent, rounded nodules or blunt spines, especially on the shoulder. The aperture is relatively wide, and the columella (inner lip) is often smooth and can be purplish. The robust, heavily sculptured shell is a key identifier.
Raritycommon
Author CitationLamarck, 1822
Description
A medium-sized marine snail shell, characterized by its robust, turbinate to ovate-conical shape and prominent sculptural features. The shell surface is adorned with strong spiral cords and distinct, rounded nodules or blunt spines, particularly noticeable on the shoulder and upper whorls. The coloration is variable but often includes shades of greenish-grey, grey, or brownish, with darker tones or purplish hues in the grooves or on the lower parts of the shell. This specimen is shown resting on a rocky substrate, indicative of its intertidal habitat.
