Molluscs Found in Oyster (Bed.s. 
69 
ARTICLE II. 
MOLLUSCS FOUND IN THE OYSTER BEDS OF 
COCAGNE, N. B., 
BEUEQUE AND SUMMERSIDE, P. E. I, 
BY REV. HENRY W. WINKl-EY, OF ST. STEPHEN. 
[Read 6th March, 1887]. 
The materials for the investigation which has yielded the 
accompanying list were as follows: Two barrels of oysters 
from Cocagne, N. B., one barrel from Bedeque, P. E. I., 
and about thirty-five barrels from Summerside, P. E. I. 
Small shells reported occur chiefly in the mud or sand dredged 
up with the oyster. The process of investigation has been 
to take either the oyster shells themselves, or the mud which 
settles in the barrel, or is left on the table where the oysters 
are opened, clean with a little water, then examine carefully, 
with a lens, all the fragments which remain. 
The work has been done chiefly on oysters from Summer- 
side, those being the ones at hand. Much more might be 
obtained by a careful search among other beds, but I give the 
list as it is. 
Thanks are due to Mr. W. F. Ganong, of Harvard College, 
for his assistance in determining species. 
An extempore talk, illustrated by the specimens found, 
was delivered before the society at its meeting in March. 
' The following species were found: — 
Nassa trivittata. Occurs occasionally at Summerside and Cocagne. 
Specimens small. 
Nassa obsoleta, A single specimen from Summerside. 
Colnmbella lunata. Occurs regularly at Summerside, varying in color 
from a very dark brown to a bright tint mottled with brown. 
