7- 
JR-27-78 June 18, 1978 /0l36 4*M* 
West side San Francisco Bay 
along U.S. Route 101, about 1 mile North of Oyster 
Point and ca 2 miles south San Francisco city line, 
San Mateo County 
California 
falling tide; Littorina scutulata on and under rocks 
along water line; salinity 25%„ 
ca 37.41 N; 122.24 W 
JR-28-78 June 18, 1978 - 5:00 P.M. 
Mouth of San Francisco Bay 
Fort Point, at south end Golden Gate Bridge, San Francisco 
San Francisco County, California 
high energy beach; Littorina scutulata from rocks, 
sparse; salinity 30% o 
37,48 N; 122.28 W 
JR-29-78 June 19, 1978 - 8:30 A.M. 
San Francisco Bay, under Bay Bridge 
West side Treasure Island, 
San Francisco County 
California 
on algae covered rocks: L. scutulata , Thais sp. ; high energe 
coast; mid tide, rising; on Naval Base 
37.50 N; 122.22 W 
JR-30-78 June 19, 1978 m » 
San Francisco Bay, under Bay Bridge 
East Side Treasure Island 
San Francisco County 
California 
algae covered rocks ( Fucus +) and under rocks; protected 
side of island; Littorina scutulata under rocks and on 
Fucus 
37.50 N; 122.22 W 
JR-31—78 June 19, 1978 - 12:00 Noon 
Monterey Bay 
rock jetty, south entrance harbor 
Moss Landing 
Monterey County 
California 
