Other Invertebrates of San Franscisco Bay Area
Millipede - Tylobolus sp.
Yellow-spotted Millipede - Harpaphe haydeniana
Photo credit: Franco Folini via Wikimedia Commons GFDL
Stone Centipede - Lithobiomorpha
Photo credit: Ryan Kaldari via Bugguide
Opalescent Inshore Squid - Doryteuthis opalescens
Photo credit: Andrew David, NOAA/NMFS
Purple-striped Jelly - Chrysaora colorata
By-the-wind-sailor - Velella velella
On this page we have collected invertebrate species not included in any of the other groups.
- Millipedes and Centipedes
- Gastropod - Snails, Slugs
- Cephalopods - Octopi, Squid
- Bivalves - Oysters, Clams, Mussels
- Marine Creatures - Jellyfish
- Articles/Links
Millipedes and Centipedes
- Millipede - Xystocheir dissecta
- Yellow-spotted Millipede - Harpaphe haydeniana
Gives off an almond scent (from hydrogen cyanide) when threatened. - Millipede - Tylobolus
- Stone Centipede - Lithobiomorpha
- Soil Centipede - Geophilomorpha
Links
- A Guide to Identifying California Centipede Orders ...link
Gastropods
- Pacific Banana Slug - Ariolimax columbianus
- Slender Banana Slug - Ariolimax dolichophallus
Photos of Banana Slugs in Big Basin State Park ...link - California Horn Snail - Cerithidea californica
- Black Abalone - Haliotis cracherodii (endangered)
They are large marine snails with smooth shells colored in shades of dark green, blue, or black.
Links
- Land Snails and Slugs of San Francisco by iNaturalist. List with photographs of most species.
- Slugs: A Guide to the Invasive and Native Fauna of California by University of California, Division of Agriculture and Natural Resources. Identification keys and illustrated with photographs. ...link
Cephalopods
- East Pacific Red Octopus - Octopus rubescens
- Opalescent Inshore (Market) Squid - Doryteuthis opalescens
Bivalves
- Olympia Oyster - Ostrea lurida
The only native oyster on the West Coast. Restoration efforts under way in San Francisco Bay. - California Mussel - Mytilus californianus
They are often found in massive clustered growths attached to rocks.
Links
- A Guide to Olympia Oyster Restoration and Conservation by San Francisco Bay National Estuarine Research Reserve ...link
Marine Creatures
- Purple-striped Jelly - Chrysaora colorata
- By-the-wind-sailor - Velella velella
They suddenly appear in large numbers on Bay Area beaches.