Canada 
Geological Survey 
Victoria Memorial Museum 
BULLETIN No. 1 
XVI . — Hydroids from Nova Scotia. 
By C. McLean Fraser. 
The material for this report was collected in distant locali- 
ties, at times some distance apart. Much of it was collected 
by the writer in the neighbourhood of Canso, the extreme 
eastern point of the mainland, in the summer of 1902, when 
the Marine Biological Laboratory was located temporarily 
at that place; the remainder was collected by Mr. John Macoun, 
in the neighbourhood of Barrington Passage at the extreme 
southern end of the peninsula, in the summer of 1910. 
At Canso, the numerous old wharves and piles afford good 
collecting ground within the harbour. There are numerous 
islands in the vicinity, but as their shore line consists usually 
of hard smooth granite, comparatively few species are to be 
found. In Chedabucto bay, by dredging in from 20 to 50 
fathoms of water many fine specimens were found, but the 
bottom is so rough and rocky that dredging is rather a slow 
process, and conditions are very similar near by in the open 
Atlantic. A good opportunity was afforded for getting some 
fine specimens from the Codbanks. Cod fishing was carried 
on in about 45 to 50 fathoms with the trawl lines. Very often 
the trawl hooks brought stalked aseidians or pieces of rock 
to which were attached specimens of hydroids. Taking 
everything into consideration, therefore, the conditions gave 
variety enough to obtain some interesting specimens. 
At Barrington Passage, the specimens were obtained from 
shallow water to a depth of 5 fathoms. 
