es DEPARTMENT OF MARINE BIOLOGY 
yo OF 
y THE CARNEGIE INSTITUTION OF WASHINGTON 
ALFRED G. MAYER, Director 
PAPERS 
FROM THE DEPARTMENT OF MARINE BIOLOGY 
OF THE 
CARNEGIE INSTITUTION OF WASHINGTON 
VOLUME VIII 
2c ory 7 
1923 j 
WASHINGTON, 12 aoe 
PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON 
1915 
