486 THE AMERICAN NATURALIST. 
86; tail, 30; hind foot, 9. The average of five specimens from 
Ontario (see « Mammals of Ontario," Miller) is: total length, 
92; tail, 32 ; hind foot, 10. (I do not quote any other measure- 
ments here, because they were not made in the flesh and are 
consequently not reliable.) 
10. Blarina brevicauda.— Only two specimens were secured, 
both being taken in a small strip of woods bordering a marshy 
pond at Kensington. 
Hypothetical List. 
While the following species did not come under my own 
observation, I obtained records of them from several observers 
whom I considered trustworthy. 
t. Tamias striatus. Fairly common. The chipmunks had 
probably hibernated beforé I reached the island. 
Sciuropterus sabrinus. Very rare. 
Lynx . Very rare. 
Vulpes fulvus. Fairly common. 
Ursus americanus. Occurred formerly. 
Lutra canadensis. Few. 
Putorius vison. Fairly common. 
Mustela americana. Very scarce. 
curious feature of the mammal life of the island is the 
absence of porcupines and skunks, neither of which, according 
to reports from several observers, occur on the island, though 
both are said to occur on the mainland opposite. 
All measurements in this paper are in millimeters. 
In conclusion I desire to thank Dr. J. A. Allen and Mr. S. N. 
Rhoads for access to the collections of mammals in their care 
for comparison. 
rer Ae eS} 
