74 Pomona College, Claremont, California 



Massive pink-white sponge. These are calcareous in part, pink on tlie surface 

 and very dense. Channels not well market!. Large masses under rock ledges. 



In addition to the ahove there is a very hriglit red sponge which is found under 

 stones. 



At Balboa bay among some oysters there is a large irregular pyramidal dermal 

 sponge of a dark brown color. 



I Contrihiition from the Znnlo/nifeil Dfpdrtm/'iit of Pnmniia College.) 



