Forbes' Sea Star

Asterias forbesi · Also known as: common sea star, starfish

Five-armed Mid-Atlantic sea star of jetties, bay bottoms, and occasional beach wrack. The “starfish” visitors hope to find.

Forbes' Sea Star (Asterias forbesi) — Ocean City, Maryland
Photo via Wikipedia / Wikimedia Commons — Asterias forbesi

Quick facts

GroupEchinoderm
Likelihood nearby★★★☆☆
Habitats Ocean beach, Inlet, Offshore / ocean, Coastal bays, Assateague State Park, Assateague National Seashore
Seasons (this coast)year-round

How to recognize them

  • Usually five stout arms; colors from orange and brown to purple-gray.
  • Rough, spiny upper surface; tube feet underneath for gripping and feeding.

Biology notes

  • Predator of mussels, barnacles, and other invertebrates; can pry open shells.
  • Populations fluctuate with disease and water conditions along the Mid-Atlantic.

Where to see them around Ocean City

  • Ocean City Inlet jetties and rock groins at low tide.
  • Assateague and OC beaches after storms; live stars more often on hard structure than open sand.

When to look

  • Year-round; lowest tides expose jetty life best.

Viewing tips & etiquette

  • Leave live stars in place—they dry out quickly out of water.
  • Watch footing on wet jetty rocks.

Sources & further reading