-6 
JR-22-78 June 16, 1978 - 11:45 A.M. 
Pacific Ocean 
Trinidad State Park, Trinidad 
Humboldt County 
California 
Ocean beach; Littorina scutulata from rocks covered with 
seaweed. 
ca. 41*10 N; 124,08 W 
JR-23-78 June 16, 1978 - 12:15 P.M, 
Bay side of point 
Trinidad State Park, Trinidad 
Humboldt County 
California 
Littorina scutulata from rocks 
ca. 41 .10 N; 124.08 W 
JR-24-78 June 16, 1978 - 2:45-4:15 P.M. 
West side Humboldt Bay 
about 1 mile north of Samoa 
Humboldt County, California 
along Salicornia marsh fringe and mud interface; 
Littorina newcombiana , alexia some L. scutulata at base 
of plants and under Fucus/ s- Salinity 25%oon damp mud. 
ca. 40.47 N; 124.11 W 
JR-25-78 June 17, 1978 
Pacific Ocean 
about 4 miles, North at Bodega Bay on State Route 1 
Sonoma County 
California 
Lit torina scutulata only on rocks 
ca. 38 .15 N; 123.05 W. 
JR-26-78 June 17, 1978 
Pacific Ocean 
about 15 miles north of Sausalito and south east of 
Bolinas, on inlet along State Route 1 
Marin County 
California 
Littorina scutulata only on and under small 
ca. 37.54 N; 122.42 W 
