UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 18, No. 12, pp. 239-298, plates 9-11, 1 figure in text March 11, 1918 



DIFFERENTIALS IN BEHAVIOR OF THE TWO 



GENERATIONS OF SALPA DEMOCRATICA 



RELATIVE TO THE TEMPERATURE 



OF THE SEA 



BY 



ELLIS L. MICHAEL 



UNIVERSITY OF CALIFORNIA PRESS 

 BERKELEY 



