Tidepool Life Scientific Names

Northern Rock Barnacle

Balanus balanoides

Sea Lettuce

Ulva lactuca

Sea Potato

Leathesia difformis

Sea Colander

Agarum cribrosum

Horsetail Kelp

Laminaria digitata

Knotted Wrack

Ascophyllum nodosum

Rockweed

Fucus species

Laver Seaweed

Porphyra species

Hooked Weed

Hypnea musciformis

Irish Moss

Chondrus crispus

Dulse Seaweed

Rhodymenia palmata

Crumb of Bread or Breadcrumb Sponge

Halichondria panicea

Dead Man’s Fingers Seaweed

Codium fragile

Frilled Anemone

Metridium senile

Northern Red Anemone

Tealia felina

Silver-spotted Anemone

Bunodactis stella

Speckled Flatworm

Notoplana atomata

Northern Lamp Shell

Terebratulina septentrionalis

Red Chiton

Ischnochiton ruber

Tortoiseshell Limpet

Acmaea testudinalis

Common Periwinkle

Littorina littorea

Smooth Periwinkle

Littorina obtusata

Rough Periwinkle

Littorina saxatilis

Common Slipper Shell

Crepidula fornicata

Dog Whelk or Dog Winkle

Nucella lapillus

Aeolid Nudibranchs

Aeolidida

Bushy-backed Nudibranch

Dendronotus frondosus

Maned Nudibranch

Aeolidia papillosa

Blue Mussel

Mytilus edulis

Ribbed Mussel

Modiolus demissus

Horse Mussel

Modiolus modiolus

Bay Scallop

Aequipecten irradians

Common Oyster

Crassostrea virginica

Jingle Shell

Anomia simplex

Golden Star Tunicate

Botryllus schlosseri

Spiral Tube Worm

Spirorbis species

American Lobster

Homarus americanus

Acadian Hermit Crab

Pagurus acadianus

Hairy Hermit Crab

Pagurus acadianus

Long-Clawed Hermit Crab

Pagurus longicarpus

Rock Crab (sometimes just called a Cancer Crab)

Cancer irroratus

Jonah Crab (sometimes just called a Cancer Crab)

Cancer borealis

Green Crab

Carcinus maenas

Green Sea Urchin

Strongylocentrotus droebachiensis

Northern Sea Star

Asterias rubens

Blood Stars

Henricia species

Grass Shrimp

Hippolyte species

Gutweed

Ulva intestinalis