Northern Sea Star

Nothern Sea Star
Asterias  rubens

You can tell that you have found a Northern Sea Star by the pale yellow “dot” on the top called the madreporite.  In the first picture, the circled sea star is the Northern Sea Star and the other one is the Common Sea Star.

Northern Sea Star vs Common Sea Star northern sea star tube feet northern sea star madreporite

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Biodiversity Exposed