RROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Fourth Series 



Vol. VII, No. 10, pp. 229-248, 4 text figures. September 1, 1917 



X 



Notes on West American Chitons — I 



S. Stillman Berry, Redlands, California 



PRINTED FROM THE 

 JOHN W. HENDRIE PUBLICATION ENDOWMENT 



SAN FRANCISCO 



Published by the Academy 



1917 



