Canada 
Geological Survey 
Victoria Memorial Museum 
BULLETIN No. 1 
XV . — Hydroids from Vancouver Island. 
By C. McLean Fraser. 
This report on the Vancouver Island Hydroids contains 
nothing essentially new, with the exception of some references 
to material collected in 1910 by Mr. W. Spreadborough in the 
neighbourhood of the Queen Charlotte islands. The basis for 
the report is the material already worked up for the paper on 
“The Hydroids of the west coast of North America”, 
published in May 1911, as a Bulletin from the laboratories of 
natural history of the State University of Iowa. 
The purpose of the report is simply to put in one list all the 
species that have been collected from the coasts of Vancouver 
island and to give, where possible, some notes as to their habitat? 
etc., that may be useful to anyone collecting hydroids in these 
waters. No one realizes more fully than the writer does, that 
this list represents but very poorly the hydroid fauna of the 
district, but everything must have a beginning, and what has 
been done already will form a basis for future work. 
Judging from the luxuriance of the specimens obtained from 
the west coast of the island and on northward to the Queen Char- 
lotte islands, I am firmly convinced that some systematic 
dredging would bring to light a hydroid fauna which would 
equal in richness that of any other coast. Nor is it necessary 
to stop at Queen Charlotte islands, as the work that has been 
done off the coast of Alaska gives an indication of how rich the 
fauna is in that region. Between Vancouver island and the 
mainland at all points are conditions quite different from those 
