92 ROYAL SOCIETY OF CANADA 
324. PUNCTURELLA CooPERI, Carpenter. 
Rept. Brit. Assoc., 1863, p. 651 (August, 1864): and Proc. Cal. Acad. Sci., vol. iii., 
p. 214 (1865). j 
Of our three species of Puncturella the two first named seem to be 
fairly common and they are usually dredged attached to stones or dead 
shells in ten to thirty or more fathoms. 
P. cucullata occurs in two forms, which may possibly prove to be 
distinct—the one has few and very prominent ribs while in the other 
the sculpture is closer and much finer. 
P. Cooperi is the smallest and rarest of the three, and so far has only 
been taken in this province, at Departure Bay, where I dredged it in 1888, 
and again last year, in company with P. galeata. 
Dr. Pilsbry unites the last named species with the Atlantic P. noa- 
china, Linne, sp. 
EMARGINULA, Lamarck. 
325. EMARGINULA oORASSA, J. Sowerby. 
Min. Conch., p. 73, pl. xxxiii., upper figures. 
The occurrence on our coasts of this rare European shell was hardly 
expected. The single specimen believed to have been taken at the 
Queen Charlotte Islands by Dr. Dawson is thus recorded by Mr. 
Whiteaves in the “ Ottawa Naturalist,” vol. vii, p. 135: ‘ An adult shell 
of this species with the animal, was found in a jar containing large 
specimens of Solaster Stimpsoni, Solaster Dawsoni, Cribrella leviuscula and 
other starfishes characteristic of the British Columbian marine fauna, 
preserved in alcohol, the contents of which, except the alcohol, were 
stated by Dr. Dawson to have been dredged by him at the Queen Char- 
lotte Islands in 1878.” 
FISSURIDEA, Swainson. 
326. FISSURIDEA ASPERA, Eschscholtz, sp. 
Fissurella aspera, Esch., Zool. Atlas, pt. 5, p. 21, pl. xxiii., fig. 5 (1883). 
cratitia, Gould. 
Common between tides from Victoria to the Queen Charlotte Islands. 
A large percentage of the shells of this species are found to contain 
besides the rightful inhabitant a parasitic annelid—Lepidonotus Lordi, 
Baird. Dr. Newcombe states in his ‘ Catalogue” that he has observed 
similar worms in the shells of Puncturella cucullata and Acmea mitra. 
