22 ROYAL SOCIETY OF CANADA 
men, we secured more than 7,000 specimens of 88 species of mollusca, 
including one species, Rictaxis punctocælata, that I had not before 
observed in this province. 
I had myself collected on a previous occasion in the same locality ; 
and during a number of years I have dredged and made shore collec- 
tions near Victoria; and at Vesuvius Bay and Ganges Harbour, on Salt 
Spring Island ; and at Comox. I have not so far had any opportunity 
of personally visiting more northern or west coast localities. 
In the notes that follow, I have endeavoured to give under each 
species, a reference to the original description and figure ; secondly, 
such synonyms as appear necessary to connect this list with previous 
papers on the same subject, likely to be consulted by the student ; 
thirdly, a list of the localities, within the province, in which the shell 
has been found; and lastly, some brief notes as to its station, relative 
abundance, and so forth, 
The determination of the shells themselves may be accepted, I 
think, as fairly accurate. I have had opportunities of studying the 
large collections in the Museum of the Geological Survey in Ottawa, 
and also the Vancouver shells in the Natural History Museum at South 
Kensington. Moreover, most of the difficult species have been submitted 
at different times to Dr, Dall, who has most kindly helped me, during 
several years past, in identifying puzzling specimens. 
In the arrangement of the species I have endeavoured to follow, as 
nearly as I could, the classification adopted by Dr. Dall in his most use- 
ful catalogue of the shells of the Atlantic coast of the United States, 
published in 1889, as Bulletin 37 of the U. S. National Museum. 
No attempt has been made to give a complete bibliography of the 
subject, but the titles of a number of the most useful papers are given 
in full in the following notes. Other useful papers, to which it is not 
possible to refer at length here, have been contributed by Drs, Cooper, 
Dall, Stearns and Pilsbry to the American Journal of Conchology and the 
Proceedings of the Academy of Natural Sciences (Philadelphia) the 
California Academy of Sciences and the United States National Museum. 
