The Canadian A rctic Expedition, 1918-18. 
Quinqueloculina seminulum Linné. 
Two specimens, each partially broken, are referred to this common elongate 
species, which seems to be very widely distributed. They are from station 29g . 
Quinqueloculina subrotunda Montagu. 
Two specimens, apparently of this common and widely distributed species, 
were obtained from station 23. 
Specimens were also found attached to the shell. of Buccinum cyaneum 
from station 22. Awerinzew records this species of Quinqueloculina from the 
Siberian Arctic. 
a 
Fig. 1. 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
EXPLANATION OF PLATE. 
Hyperammina subnodosa, with attached specimens of Tholosina bulla. This is apparently 
a megalospheric specimen, the proloculum being greater in diameter than the tubular 
chamber, and the entire length less than the full grown microspheric form, fig, 2, x 10. 
From station 43a. 
Hyperammina subnodosa, with attached specimens of Tholosina bulla. A microspheric 
specimen of H. subnodosa with the diameter of the proloculum “ess than that of the 
tubular chamber and the whole test large. x10. From Station 43a. 
Anumobaculites cassis, side view of very broad form, found in the Canadian Arctic Expe~ 
dition material. This is much broader than the usual specimens from other regions, 
x 20. From Station 20 b-c. 
Trochammina nana, ventral view, the last formed chamber very light in colour compared 
to the earlier ones. x 125. From Station 29g. 
Verneuilina polystropha (?), side view of a very slender form found in the Arctic material. 
x 125. From Station 20 b-c. 
