Molluscs of Southern California
(Click on images or names to open). 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
and some guests
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| Bivalvia List of Newport Bay Bivalves |
| Chamidae |
Mytilidae |
Pacific Jewelbox,
Pseudochama exogyra |
Ribbed Mussel,
Geukensia demissa |
Asian date mussel,
Musculista senhousia |
California Mussel,
Mytilus californianus |
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| Ostreidae |
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Olympia Oyster,
Ostrea conchaphila |
Pacific Oyster, Crassostrea gigas |
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| Pectinidae |
Petricolidae |
Pholadidae |
Psammobiidae |
Giant Rock Scallop,
Crassadoma gigantea |
Speckled Scallop, Argopecten ventricosa |
Hearty Petricolid,
Petricola carditoides (?) |
Piddock |
California Jack-knife Clam,
Tagelus californianus |
| Semelidae |
Veneridae |
Asian Semele,
Theora lubrica |
Clipped semele, Semele decisa |
Pacific Littleneck,
Leukoma staminea |
Japanese Littleneck, Venerupis philippinarum |
California Butter Clam,
Saxidomus nuttalli |
| Cephalopoda |
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Two-spotted Octopus, Octopus bimaculatus |
Octopus, Octopus sp. |
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| Gastropoda |
| Archaeogastropoda |
Archaeopulmonata |
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| Fissurellidae |
Ellobiidae |
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Southern Finger Limpet,
Lottia austrodigitalis |
Giant Keyhole Limpet,
Megathura crenulata |
Salt Marsh Snail,
Melampus olivaceus |
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| Docoglossa |
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Notaspidea |
| Acmaeidae |
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Tylodinidae |
Rough Limpet,
Collisella scabra |
Owl Limpet,
Lottia gigantea |
File Limpet,
Lottia limatula |
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Sidegill Slug,
Tylodina fungina |
| Nudibranchiata |
| Chromodorididae |
Dorididae |
Dotidae |
Flabellinidae |
Porter's Chromodorid Nudibranch, Mexichromis porterae |
San Diego Dorid,
Diaulula sandiegensis |
Doto,
Doto sp. |
Spanish Shawl,
Flabellina iodinea |
Three-lined aeolid,
Flabellina trilineata |
| Goniodorididae |
Polyceridae |
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Hopkin's Rose, Okenia rosacea |
Sorcerer's Nudibranch,
Polycera atra |
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| Opisthobranchia |
| Acteonidae |
Aglajidae |
Aplysiidae |
Bullidae |
Striped Barrel Snail,
Rictaxis punctocaelatus |
Striped Sea Hare,
Navanax inermis |
Sea Hare,
Aplysia californica
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California Black Sea Hare,
Aplysia vaccaria |
Gould's Bubble Snail,
Bulla gouldiana |
| Sorbeoconcha |
| Conidae |
Cypraeidae |
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Hydrobiidae |
California Cone Snail,
Conus californicus |
Slipper Limpet, Crepidula sp.
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Chestnut Cowrie,
Cypraea spadicea |
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New Zealand Mud Snail, Potamopyrgus antipodarum |
| Littorinidae |
Muricidae |
Checkered Periwinkle,
Littorina scutulata |
Gray Littorine,
Littorina planaxis |
Gem Murex,
Maxwellia gemma |
Festive Murex,
Pteropurpura festiva |
Emarginate Dog Winkle, Nucella emarginata |
| Potamididae |
Vermetidae |
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California Horn Snail,
Cerithidea californica |
Scaly Worm Shell,
Serpulorbis squamigerus |
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| Polyplacophora |
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Pulmonata (Land snails) |
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| Mopaliidae |
Lepidochitonidae |
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Xantonychidae |
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 Mossy Chiton, Mopalia muscosa |
 Southern Spiny Chiton,
Nuttallina fluxa |
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Southern California Shoulderband, Helminthoglypta tudiculata |
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| Vetigastropoda |
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| Haliotidae |
Trochidae |
Turbinidae |
Threaded Abalone, Haliotis kamtschatkana assimilis |
Smooth Brown Turban (Norris' Top Shell), Norrisia norrisi |
Black Turban, Tegula funebralis |
Speckled Turban, Tegula gallina |
Wavy Top Turban |
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