Crepidula perforans
(Valenciennes, 1846)

Mollusca, Gastropoda, Calyptraeidae

Height: 55 mm

Habitat: under rocks, in apertures of gastropod shells

Documented occurrences of Crepidula perforans:



Localities by County, City/Area, and Name Year Earliest* Latest*

Los Angeles Long Beach Alamitos Bay, Under west end of 2nd St bridge, west end of Naples Island 1977
Los Angeles Palos Verdes Peninsula 0.5 milles east Point Vicente 1962
Los Angeles Palos Verdes Peninsula Bluff Cove 1970
Los Angeles Palos Verdes Peninsula E side Whites Point 1976
Los Angeles Palos Verdes Peninsula E side Whites Point 1968
Los Angeles Palos Verdes Peninsula Flatrock Point 1962
Los Angeles Palos Verdes Peninsula Whites Point 1969
Los Angeles San Pedro Breakwater near Lighthouse
Los Angeles San Pedro Point Fermin
Los Angeles San Pedro Point Fermin 1940
Los Angeles San Pedro Point Fermin 1950
Los Angeles San Pedro Point Vicente 1961
Los Angeles San Pedro Portuguese Bend 1939
Los Angeles San Pedro San Pedro Breakwater 1941
Los Angeles San Pedro San Pedro General
Los Angeles San Pedro San Pedro General
Los Angeles San Pedro San Pedro General
Los Angeles San Pedro San Pedro General
Los Angeles San Pedro San Pedro Outer Harbor
Los Angeles San Pedro San Pedro Warf
Los Angeles San Pedro White's Point
Los Angeles Santa Catalina Island Big Fisherman's Cove 1975 1979
Los Angeles Santa Catalina Island Pebbly Beach 1986
Orange Dana Point Dana Point General 1975 1979
Orange Huntington Beach Anaheim Bay General 1965
Orange Huntington Beach Anaheim Bay General 1965
Orange Laguna Beach Arch Beach 1941
Orange Laguna Beach Boat Canyon
Orange Laguna Beach Laguna Beach General
Orange Laguna Beach Mussel Cove
Orange Newport Beach Corona Del Mar 1975 1979
Orange Newport Beach Little Corona Beach 1948
Orange Newport Beach S side of Newport Bay near coast Guard Station 1969
Orange Newport Beach South of breakwater, Corona del Mar 1969
San Diego La Jolla Foot of Midway Steet 1972
San Diego La Jolla La Jolla Beach and Tennis Club 1971
San Diego La Jolla La Jolla General
San Diego La Jolla La Jolla General
San Diego La Jolla La Jolla General 1921
San Diego La Jolla La Jolla General
San Diego La Jolla La Jolla General
San Diego La Jolla Seal Beach
San Diego Mission Bay Mission Bay Flood Control Channel 1959
San Diego Mission Bay Mission Bay Flood Control Channel 1981
San Diego Mission Bay Mission Bay General 1966
San Diego Mission Bay Ventura Cove 1968
San Diego Pacific Beach Pacific Beach General
San Diego Point Loma Cabrillo National Monument General 1976
San Diego San Diego San Diego General
San Diego San Onofre San Onofre General 1969
Santa Barbara Carpinteria E boundary Carpinteria State Beach 1977
Santa Barbara Goleta Coal Oil Point 1961
Santa Barbara Point Conception E and W sides of Government Point, 1.3 milles milles SE of Point Conception Lt. 1988
Santa Barbara Point Conception E and W sides of Government Point, 1.3 milles milles SE of Point Conception Lt. 1988
Santa Barbara Santa Cruz Island Fourney's Cove 1969
Santa Barbara Santa Cruz Island Fourney's Cove 1969
Santa Barbara Santa Cruz Island Prisoners Harbor 1975 1979
Santa Barbara Santa Cruz Island Willow's Anchorage 1975 1979
Santa Barbara Santa Rosa Island South Point 1975 1979
Ventura Point Mugu Mugu Lagoon General
Ventura Point Mugu Mugu Lagoon General
Ventura Point Mugu Mugu Lagoon MacGinitie VI 1962 1964
Ventura Rincon Beach Pitas Point 1960
Ventura Rincon Beach Rincon Point 1964
Ventura San Nicolas Island W end Army Camp Beach, North side San Nicolas Island 1987