124* 



ewport 

 YAQUINA 



T 



COLUMBIA RIVER 



122* 



46' 



BAY 



R EGON 



44' 



BLANCO 



42* 

 122' 



126* 



124* 



Figure 2. Location map of collections of Solemya johnsoni 



(solid circles) and Lamellibrachia barhami (triangle) by 

 trawl and dredge (1962-1970) 

 (1 fath. = 1.83 m. ) (Carey, 



Depch contours in fathoms, 

 unpublished data). 



140 



