UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 18, No. 13,pp. 299-336, plates 12-13, 6 figures in text Apri.1 20, 1918 



A QUANTITATIVE ANALYSIS OF THE 

 MOLLUSCAN FAUNA OF SAN 

 FRANCISCO BAY 



BY 

 E. L. PACKARD 



UNIVERSITY OF CALIFORNIA PRESS 

 BERKELEY 



