J>'-- 
a yoiin.M Sa:-^;,i. hi t li. mi what is knouii of the hydroid of the At- 
lantic SarM.i. It sfc^in. hiL,diIy probabk- that this 
hydroid is the \-ount; of the Pacific Coast Sarsia. 
Associated with the precedinjr hydroid on the 
piles of the wharf at Santa Barbara, there is 
another hydroid not yet determined, figures 
of which are given herewith. These hydroids 
belong to tlic second group of Hydroidea, 
the Campanularians, and arc found in clusters, ^.. ^^^ ^^ 
shown in the first figure. The larger cut repre- 
sents a single head, very much magnified, with the tentacles 
