Guide to the Exotic Species of San Francisco Bay

Invasive Species List Sources

This source is used to designate the following species as invasive.
Scientific Name Common Name Type Subtype Extent Risk of Introduction Link
Arcuatula senhousia Green bagmussel invertebrate aquatic mollusk, marine limited n/a (already in CA)
Balanus amphitrite Striped barnacle invertebrate crustaceans and tunicates limited n/a (already in CA)
Botrylloides violaceus Chain sea squirt invertebrate crustaceans and tunicates limited n/a (already in CA)
Botryllus schlosseri Star sea squirt invertebrate crustaceans and tunicates limited n/a (already in CA)
Bugula neritina Moss animal invertebrate other limited n/a (already in CA)
Busycotypus canaliculatus Channeled whelk invertebrate aquatic mollusk, marine limited n/a (already in CA)
Clathria polifera Red beard sponge invertebrate other limited n/a (already in CA)
Cryptosula pallasiana Moss animal invertebrate other limited n/a (already in CA)
Diadumene lineata Orange-stripped anemone invertebrate other limited n/a (already in CA)
Didemnum vexillum Sea squirt invertebrate crustaceans and tunicates limited n/a (already in CA)
Ficopomatus enigmaticus Sea worms invertebrate other limited n/a (already in CA)
Geukensia demissa Ribbed horsemussel invertebrate aquatic mollusk, marine limited n/a (already in CA)
Ilynassa obsoleta Eastern mudsnail invertebrate aquatic mollusk, marine limited n/a (already in CA)
Littorina littorea Common periwinkle invertebrate aquatic mollusk, marine limited n/a (already in CA)
Littorina saxatilis Rough periwinkle invertebrate aquatic mollusk, marine limited n/a (already in CA)
Mya arenaria Soft-shell clam invertebrate aquatic mollusk, marine limited n/a (already in CA)
Myosotella myosotis Mouse-ear marshsnail invertebrate aquatic mollusk, marine limited n/a (already in CA)
Ruditapes phillipinarum Japanese littleneck clam invertebrate aquatic mollusk, marine limited n/a (already in CA)
Styela clava Club sea squirt invertebrate crustaceans and tunicates widespread n/a (already in CA)
Urosalpinx cinerea Atlantic oyster drill invertebrate aquatic mollusk, marine widespread n/a (already in CA)
Watersipora subtorquata Moss animal invertebrate other limited n/a (already in CA)