Nuttall’s Cockle


Nuttall’s Cockle

This chunky bivalve is easy to find.  It is also called a “heart cockle.” Turn it sideways and see if you can see the heart shape.

Look at the extraordinary design where the two shells come together. This curvy edge makes it harder for predators to reach the soft animal inside.

Watch for cockles that are partially open.  See if you can find the valves, as well as the strong muscle that will quickly snap the shell closed if disturbed.

Sometimes cockle eyes can be seen sticking up from the sand, especially when the tide is coming in.

Cockles were an important food source for native people, who prepared them like clams. To harvest them, the gatherer would tap a stick next to the protruding eyes, hoping that the cockle would grab it, making it easy to lift out of the sand.


A cockle with its siphons showing.  This means that it is drawing in water to gather oxygen so that it can breathe.

For more information about Cockles as food, check out Traditional Animals Foods of Indigenous Peoples