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MARINE INVERTEBRATES AT RACE ROCKS

PHYLUM PORIFERA
red sponge Rostanga nudibranch eating a red sponge.

Rostanga pulchra and Ophlitaspongia pennata

hermit crab sponge The hermit crab Pagurus and Suberites sponge -
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PHYLUM MOLLUSCA
lined chiton The Lined Chiton

Tonicella lineata

abalone escape The Escape Response of Abalone when presented with the sea star Pycnopodia

Haliotis kamtschatkana

abalone video Carmen and Garry discuss about abalone while examining one in the intertidal zone.
Haliotis kamtschatkana
abalone video Abalone eating diatoms on a glass wall
Haliotis kamtschatkana
octopus One morning we found the body of an octopus washed up in the intertidal zone. An impromptu dissection led to this video.

Enteroctopus dofleini

gumboot chiton The Gumboot Chiton

Cryptochiton stelleri
corolla,corolla The Pteropod
Corolla spectabilis
swimming scallop The Swimming Scallop
Chlamys hastata
nudibranch A microscopic view of a nudibranch of the family Dendronotidae
crepidula The Slipper shell
Crepidula adunca
keyhole limpet escape response A video of the escape response of the Keyhole limpet. Diodora aspera
PHYLUM CNIDARIA
gersemia Pink soft coral and a close-up study of the defense mechanism. (June 2001)

Gersemia rubiformis,

soft coral Soft pink coral of Race Rocks

Gersemia rubiformis,

Stalked Jellyfish The Stalked Jellyfish

Haliclystus sp.

jelly fish Medusae: jellyfish swimming in the waters of Race Rocks.
(June 2001)
sea pen Sea Pen

Ptilosarcus gurneyi

zooanthid anemone Zooanthid anemone

Epizoanthus scotinus

The Plumose Anemone
Metridium farcimen
Jellyfish, Cyanea The Jellyfish Cyanea

Cyanea capillata

jellyfish The Jellyfish Euphysa

Euphysa flammea

PHYLUM SIPUNCULIDA
peanut worm Peanut Worms

Phascolosoma agassizii

PHYLUM CNIDARIA- Class Hydrozoa
tubularia Rare hydroid near Race Rocks

Tubularia sp.
hydroids Hydroids,tunicates and sponges growing on Balanus nubilus barnacles at the tidal current energy site.
PHYLUM ECHINODERMATA
sea cuc sperm video Sea Cucumber emitting sperm
Parastichopus californicus
california sea cucumber The California Sea Cucumber exhibits an escape response when approached by the Sunflower Star.
sea cucumber An albino sea cucumber

Parastichopus californicus

sea cucumber The Orange Sea Cucumber

Cucumaria curata.
purple urchin The purple urchin Strongylocentrotus purpuratus
Psolus
Predation of the Creeping Pedal Sea Cucumber

Psolus chitinoides

Blood star The Blood Star
Henricia leviscula
The Vermillion Star

Mediaster aequilis

vermillion star The vermillion star producing sperm.
spiny The Spiny Sea star

Hippasteria spinosa

six-rays The Six Rayed Star

Leptasterias hexactis

sea star The Sunflower star

Pycnopodia helianthoides

Pycnopodia Pycnopodia closeups
Phylum Bryozoa
bryozoa Bryozoa on kelp blades
Membranipora serrilamella
PHYLUM ARTHROPODA
orange hermit Orange Hermit Crab

Elassochirus gilli

kelp fly Flat backed kelp flies

Coelopa vanduzeei
king crab The Puget Sound King Crab

Lopholithodes mandtii

slater The Sea Slater

Ligia pallasii

pea crab The Pea Crab, parasite in mussel.

Fabia subquadrata

hermit crab The wide-hand hermit crab.
Elassochirus tenuimanis
gammarus The amphipod
Gammarus sp.
seaspider The Pycnogonid (SeaSpider)

Phoxichilidium femoratum

purple shore crab Purple Shore crab

Hemigrapsus nudus

barnacle feeding Microscopic video of juvenile feeding.

Balanus nubilus

The Red velvet Mite:

Neomolgus littoralis

Marine Invertebrates present a spectacle of color and diversity. Through class projects and diver assistance the process of documentation of the species of Race Rocks is continuing. Video clips as well as links to the Race Rocks Taxonomy are available here.
video with brittle star Brittle Stars

Ophiothrix spiculata

brittle star Microscopic images of a Brittle star.

Ophiothrix spiculata

PHYLUM ANNELIDA
jelly tube The Jelly tube worm

Myxicola infundibiulum
tubeworm The Feather-Duster
tube worm

Eudistylia vancouveri

purple urchin Rita introduces the purple urchin and some of our other Echinoderms.

IN PORTUGUESE:
PHYLUM CHORDATA, subclass Tunicata
distaplia The club tunicate
Distaplia smithii
MIXED PHYLA
Invertebrates Invertebrates of
Race Rocks

zooplankton Zooplankton (Macro) at Race Rocks, 2000

Gallery and Taxonomy
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