in FIELD GUIDE Marine of the Rocky Intertidal Zone

Cnidaria (stinging animals) (continued) Green anemone Kelp isopods (Anthopleura anthogrammica) (Idotea wosnesenskii) To 12 in (30 cm) in diameter To 1 3/8 in (3.5 cm) long Green disc with tentacles Brown, green or red, often blending in with algae or rocks

Agregating anemone Purple shore crab (Anthopleura elegantissima) (Hemigrapsus nudus) Averages 2 in (5 cm) in Carapace to 2 in (5.6 diameter. Green discs with cm) wide. Normally dark pinkish-tipped tentacles purple, but olive green or reddish brown animals are not uncommon Arthropods (joint legged animals) Dungeness crab Acorn (Cancer magister) () Carapace to 8 in (20 To 3/4 in (1.8 cm) in diameter cm) wide. Red-brown to White to gray purple shell, with spines on the front edge

Graceful Decorator crab Thatched (Origonia Gracilis) ( cariosus) Carapace to 1 1/2 in To 1 1/2 in (4 cm) in diameter (3.9 cm) wide. Often White to gray camouflaged; Attaches bits of kelp and sponges on its back Goose barnacle Hermit crab (Pollicipes polymerus) (Pagurus spp.) To 4 in (10 cm) long Shells to 1 in (2.5 cm) Cream colored plates attached long. Moves to larger to dark brown gooseneck-like shells as it grows flexible stalks cm Mollusks (soft bodied animals) Mollusks (continued) Checkered periwinkles Black Katy chiton (Littorina scutulata) To 4 3/4 in (12.1 cm) long Shells to 5/8 in (1.6 cm) high Oval, flattened animals with eight Often occupied by hermit crabs overlapping shell plates covered by brown to black girdle

Sea lemon Emarginate dogwinkle (Anisodoris nobilis) or rock whelk Usually to 4 in (10 cm) long, but (Nucella emarginata) can get bigger Shells to 1in (2.5 cm) high Yellow to orange body with small Color varies, bands on shell black spots

Giant Pacific Octopus Pacific blue mussel (Octopus dofleini) () Arms spread to 24 ft (7.3 m) Shells to 4 1/2 in (11 cm) long, across generally much smaller Capable of changing color and Color varies from blue or texture of skin brown to black Echinoderms (spiny-skinned animals) Clams Purple or Ochre Star Size, color and shape vary by () To 20 in (50 cm) across Two-shells attached by a hinge Can be purple, orange or brown with two siphons

Purple sea urchin Limpets (Stonglylocentrotus purpuratus) Size and color vary by species To 6 in (15 cm) across One-shelled, cone-shaped Mol- Purple, spherical with spines lusks

Beach Protector’s Pledge Fish Tidepool sculpin I will take care of beach life by touching gently, always walking (Oligocottus maculosus) carefully, and leaving animals where I found them. To 3 1/2 in (8.9 cm) long I will share my knowledge of the beach with friends and family. Gray to brown coloring I will always do my best to protect the beach and the animals that live there.

TAKE ONLY LITTER