Low Tide Life: Atlantic Dogwinkle

Photo of Atlantic Dogwinkles

In addition to Common Periwinkles, I've eaten another local saltwater snail this year, the Atlantic Dogwinkle (Nucella lapillus). Also known as Dogwhelks, these native, pointy-shelled mollusks live in rocky, intertidal zones, alongside the non-native and often more numerous Common Periwinkles. Atlantic Dogwinkles come in a variety of colors (often white), have pointed spires (unlike the blunt spires of Common Periwinkles), and have a groove at the base of the shell opening.

Photo of Common Periwinkle vs. Atlantic Dogwinkle

Scouting out a low-tide Biddeford location, I was able to find areas with more Dogwinkles than Periwinkles, enough for me to feel comfortable harvesting a dozen to eat. After boiling them for a minute or two in saltwater, extracting them with a pin, and removing each operculum (the thin cover on their shell-opening), I enjoyed them as an oceany appetizer.

The top photo shows both snails -- Atlantic Dogwinkles (with white, pink, yellow and black shells) and Common Periwinkles (a light-tan one on left and a smaller, darker one on right). To view the following images in full-size, click here.

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