UNIVERSITY OF CALIFORNIA PUBLICATIONS 



rN 



ZOOLOGY 



Voi. 4, Nos. 6 and 7> pp. 345-393, text-figures 33. April 22, 1908 



CONTRIBUTIONS FROM THE LABORATORY 



OF THE _ 



MARINE BIOLOGICAL ASSOCIATION OF SAN DIEGO 

 XXI 



[exuviation, autotomy and regen- 

 eration in ceratiumj 



CHARLES ATWOOD KOFOID. 

 XXII 



NOTES ON SOME OBSCURE SPECIES OF 

 CERATIUM 



BY ^ 



CHARLES ATWOOD KOFOID, 



BERKELEY 



THE UNIVERSITY PRESS 



