Intertidal Species Identification Cards

A star-shaped echinoderm found in northern waters.

• Northern Sea Star

• Southern Sea Star

• Eastern Sea Star

• Western Sea Star

A large marine crustacean with a long body and claws.

• Lobster

• Crab

• Shrimp

• Octopus

a small crustacean that attaches to rocks and shells with distinctive purple striping patterns along its shell

• Striped Barnacle

• Purple Sea Urchin

• Green Anemone

• Red Lobster

A type of kelp with a perforated, colander-like appearance.

• Sea Colander Kelp

• Giant Kelp

• Bull Kelp

• Nori

An algae that grows on other marine seaweeds but is not parasitic.

• Epiphyte

• Parasitic Algae

• Planktonic Algae

• Benthic Algae

A bivalve mollusk known for producing pearls.

• Clam

• Mussel

• Oyster

• Scallop

A type of native crab found in rocky coastal areas.

• Rock Crab

• Blue Crab

• Dungeness Crab

• King Crab

A predatory sea snail found on rocky shores.

• Dog Whelk

• Sea Urchin

• Clam

• Starfish

A large crab species found in the Atlantic Ocean known for its brown-black tipped claws.

• Jonah Crab

• Blue Crab

• Dungeness Crab

• King Crab

A type of green seaweed with a spongy texture.

• Codium

• Chlorella

• Ulva

• Sargassum