Aglaophenia sp.

(hydroid)

Velella velella

(by the wing sailor)

Anthopleura elegantissima

colonia, high on rocks

Anthopleura xanthogrammica

(giant green)

Phascolosoma Agassizii

(peanut worm)

Harmothoe imbricata

(scale worm)

Pollicipes polymerus

(goose barnacle)

Balanus glandula

grows with and below (but is taller than) cthamalus delli

white

Balanus nubilus

large, grows deep

Chthamalus delli

grows with and above balanus glandula

smaller, gray

Tetraclita squamosa rubescens

pink, larger than balanus

Megalorchestia californiana

(beach hopper)

pink antennae

Cancer magister

(market crab)

Cancer productus

(red crab)

Hemigrapsus nudus

(purple shore crab)

no hair on legs, red spots on chelipeds, 3 teeth, square back

Pachygrapsus crassipes

(lined shore crab)

red or purple lines, square back, hairy feet

Petrolisthes sp.

(Porcelain crab)

flat, fits under rocks

Pugettia producta

(kelp crab)

carapase pointy with needle sharp legs

Emerita analoga

(mole crab)

Pagurus sp.

(hermit crabs)

right cheliped larger than left

Cryptochiton stelleri

valves completely concealed, thick, red-brown, velvety girdle, large

Tonicella lineata

(line chiton)

pink

Katharina tunicata

leathery black girdle covering 2/3 of valves

Mopalia ciliate

stiff bristles, thin, dark brown with gray molting and white stripes

Mopalia muscosa

sides covered, abundant bristles, dark brown with gray molting and while stripes

Mopalia lignosa

looks like wooden grains

Nutallina california

white when eroded

Haliotis refescens

(red abalone)

Haliotis cracherodii

(black abalone)

Diodora aspera

(keyhole limpet)

round hole

Fissurella volcano

(keyhole limpet)

thin oval hole

Megatebennus bimaculatus

(key hole limpit)

large long hole

Megathura crenulata

(keyhole limpit)

round, long hole

Acmaea mitra

(limpit)

white

Lottia digitalis

(limpit)

small

Lottia instabilis

(limpit)

not flat, attaches to egregia menziessii

Lottia limatula

(limpit)

owl inside, round

Lottia pelta

(limpit)

tall, cone like

Lottia scabra

(limpit)

bumby ridges

Lottia gigantea

(limpit)

eroded, dark circle at the edge of the inside margin

Lottia fenestrate

(limpit, dark circle +margin, smooth, concentric)

Lottia persona

(limpit)

big, thin tip

Lottia scutum

(limpit)

thick tip, checkerboard

Calliostoma annulatum

(snail)

large stripes

Calliostoma canaliculatum

(snail)

raised small stripes

Calliostoma ligatum

(snail)

stripes

Chlorostoma brunnea

(snail)

Chlorostoma funebralis

(snail)

Chlorostoma montereyi

(snail)

naval is white

Cypraea spadica

(chestnut cowry)

Promartynia pulligo

(snail)

Littorina littorea

(snail)

lines, small

Littorina planaxis

(snail)

checkerboard

Littorina scutulata

(snail)

black seaseme seed

Crepidula lingulata

(slipper shell)

two decks

Garnotia adunca

grows on Chlorostoma

Crepidula nummaria

(slipper shell)

Crepidula plana

(slipper shell)

Euspira lewisii

(moon snail)

Ceratostoma foliatum

wings

Nucella canaliculata

parallel lines

Nucella lamllosa

lumps

Mytilus edulis

thin, blue, narrow

Hinnites giganteus

(rock scallop)

Pododesmus cepio

(jingle shell)

Dendraster exentricus

sand dollars

Strongylocentrotus franciscanus

red urchin

Strongylocentrotus purpuratus

purple urchin

Leptasterias pusilla

six legs

Pisaster ochraceus

5 legs

Parastichopus californicus

sea cucumber

Styela montereyensis

tunicate

two holes on top, contains cellulos

Zostera marina

(eel grass)

Phyllospadix torreyi

(narrow surf grass)

Cladophora columbiana

(green pin cushin)

Codium fragile

velvety

Codium setchellii

velvety

Enteromorpha intestinalis

base is made of tubes

Alaria marginata

midrib, ears on the side

Costaria costata

3 midribs on one side, 2 on the other

Cystoseia osmundacea

Calliarthron tuberculosum

bamboo at base

Iridaea flaccida

base green

Porphyra perforata

nori