Intertidal Life of Orange County, California
Yellow background, introduced species
Photographed and compiled by Peter J. Bryant (pjbryant@uci.edu), Department of Developmental and Cell Biology, University of California, Irvine, CA 92697 |
| Sponges |
Bryozoa |
Breadcrumb Sponge,
Halichondria panicea |
Sponge |
Sponge |
Membranipora membranacea |
Jellyella tuberculata |
| Sea Anemones |
Moonglow Anemone,
Anthopleura artemisia? |
Aggregating Anemone,
Anthopleura elegantissima |
Solitary Green ("Starburst") Anemone,
Anthopleura sola |
Giant Green Anemone,
Anthopleura xanthogrammica |
Brooding Sea Anemone,
Epiactis prolifera |
| Polychaetes |
Feather Duster Worm
|
Feather Duster Worm,
Megalomma sp. |
Sandcastle Worm,
Phragmatopoma californica
|
Calcareous Tube Worm,
Hydroides sp. |
Christmas Tree Worm, Spirobranchius sp. |
| Chitons |
Octopuses |
Conspicuous Chiton,
Stenoplax conspicua |
 Southern Spiny Chiton,
Nuttallina fluxa |
 Mossy Chiton,
Mopalia muscosa |
Two-spotted Octopus,
Octopus bimaculatus |
|
| Limpets |
Rough Limpet,
Collisella scabra |
Southern Finger Limpet,
Lottia austrodigitalis |
Owl Limpet,
Lottia gigantea |
File Limpet,
Lottia limatula |
Giant Keyhole Limpet,
Megathura crenulata |
| Snails |
Threaded Abalone,
Haliotis kamtschatkana assimilis |
Wavy Top Turban,
Astraea undosa
|
Speckled Turban,
Tegula gallina |
Black Turban,
Tegula funebralis |
Smooth Brown Turban (Norris' Top Shell), Norrisia norrisi |
California Horn Snail,
Cerithidea californica |
Gem Murex,
Maxwellia gemma |
Emarginate Dog Winkle,
Nucella emarginata |
Festive Murex,
Pteropurpura festiva |
Checkered Periwinkle,
Littorina scutulata |
Gray Littorine,
Littorina planaxis |
Slipper Limpet, Crepidula sp. |
Chestnut Cowrie,
Cypraea spadicea |
California Cone Snail,
Conus californicus |
Scaly Worm Shell,
Serpulorbis squamigerus |
Sea Hare |
 California Black Sea Hare,
Aplysia vaccaria |
Nassa Mud Snail, Nassarius sp. |
Sidegill Slug,
Tylodina fungina |
Hopkin's Rose, Okenia rosacea |
Spanish Shawl,
Flabellina iodinea |
Lemon Nudibranch,
Anisodris nobilis |
Sorcerer's Nudibranch,
Polycera atra |
Speckled Triopha,
Triopha maculata |
Opalescent Sea Slug,
Hermissenda opalescens |
| Bivalves |
Pacific Jewelbox,
Pseudochama exogyra |
Ribbed Mussel,
Geukensia demissa |
Asian date mussel,
Musculista senhousia |
California Mussel,
Mytilus californianus |
|
| Echinoderms |
Purple Sea Urchin, Strongylocentrotus purpuratus |
Giant Red Sea Urchin,
Strongylocentrotus franciscanus |
White Sea Urchin,
Lytechinus anamesus |
Sand Dollar,
Dendraster excentricus |
Warty Sea Cucumber,
Parastichopus parvimensis |
Brittle Star,
Amphiodia occidentalis |
Banded Brittle Star,
Ophionereis annulata |
Spiny Brittle Star,
Ophiothrix spiculata |
Ochre Star,
Pisaster ochraceus |
Bat Star,
Asterina miniata |
Leather Star,
Dermasterias imbricata |
Pink Sea Star,
Pisaster brevispinus |
Comb Sand Star,
Astropecten armatus |
|
|
| Amphipods |
Amphipod,
Amphithoe plumulosa |
Skeleton Shrimp,
Caprella mendax |
Beach amphipod,
Melita sp. |
California Beach Hopper, Orchestoidea californiana |
Big-eyed Beach Hopper, Orchestoidea corniculata |
| Isopods |
Water slater,
Asellus aquaticus |
Harford's Isopod,
Cirolana harfordi |
Bigtail Isopod,
Exosphaeroma amplicauda |
Exosphaeroma inornata |
Sea Slater (Rock Louse),
Ligia occidentalis |
| Barnacles |
Goose Barnacle,
Pollicipes polymerus |
Acorn Barnacle,
Balanus glandula |
California Barnacle,
Megabalanus californicus |
Small Acorn Barnacle,
Chthalamus fissus |
Red-thatched Barnacle,
Tetraclita rubescens |
| Crabs |
Pacific Sand Crab,
Emerita analoga |
Yellow Shore Crab,
Hemigrapsus oregonensis |
Striped shore crab,
Pachygrapsus crassipes |
Swimming Crab,
Portunus xantusii |
Kelp Crab,
Pugettia sp. |
| Hermit crabs |
Fish |
Hermit Crab,
Pagurus samuelis |
Hermit Crab,
Pagurus hirsutiusculus |
Hermit Crab |
Wooly Sculpin |
Opaleye |
| Sea Spiders |
|
Ammothea hilgendorfi |
Ammothella biunguiculata |
Pycnogonum stearnsi |
Unidentified |
|
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