-5- 
JR-17-78 June 15, 1978 - 2:30 P.M. 
Pacific Ocean at Mouth of Coquille River, north jetty 
Bandon 
Coos County 
Oregon 
Littorina scutulata, Thais on rocks 
43.07 N; 124.25 W 
JR-18-78 June 15, 1978 
Pacific Ocean 
1-2 miles south of Port Orford 
Curry County 
Oregon 
Littorina scutulata only on rocks; salinity 33% 
42.45 N; 124.30 W 
JR-19-78 June 15, 1978 
Pacific Ocean 
near Lighthouse Point, 
Del Norte County 
California 
Crescent City 
Littorina scutulata from rocks on rising tide Salinity 33% 
41.45 N; 124.12 W 
JR-20-78 June 16, 1978 - 9:15 A.M. 
Pacific Ocean 
near Lagoon Creek, 
US Route 101 
Del Norte County 
California 
ca 15 miles South of Crescent City on 
Littorina scutulata , only, on rocks 
ca. 41 .35 N; 124 .10 W 
JR-21-78 June 16, 1978 - 10:30 A.M. 
Pacific Ocean 
1 mile southwest of Orick 
Humboldt County 
California 
Littorina scutulata only on large rocks at south end of 
beach; on ocean side of US route 101 across road from 
freshwater lagoon. 
41.17 N; 124.04 W 
