[2] (Description of Amauropsis purpurea) The shell is elongate-globose, coated with a yellowish epidermis, and exhibits a purple-brown hue that weathers to a purplish-white tone.

It comprises four inflated, globose whorls with a deeply canaliculated suture.

The outer lip is thin, while the columella is white, thickened, and smoothly rounded.

The shell’s surface features numerous closely spaced, fine revolving grooves interspersed with a few faint ridges, adding a subtle texture to its otherwise smooth appearance.

[3] This marine species occurs off Greenland, Canada (Newfoundland, Nova Scotia), United States (Maine, Massachusetts, Alaska), and on the Georges Bank.