Dr. Gappcr on the Mammalia of Upper Canada. 201 



Art. XXXI. Observations on the Quadrupeds foutid in the 

 District of Upper Canada extending between York and 

 Lake Simcoe, with the vieiv of illustrating their geographi- 

 cal distribution, as ivell as of describing some impedes hi- 

 therto unnoticed. By Dr. Gapper. 



The sign * denotes that I have seen but imperfect specimens; •» that I have 

 only been told of the existence of the species. The numbers prefixed refer 

 to Dr. Richardson's " Fauna Boreali-Americana." 



(1.) Vcspertilio pruiiiosus [Say.)* Hoary Bat. 



(2.) suhulatus (Say.) Say's Bat. 



The most common Bat in the home district. It agrees exactly with 

 Dr. Richardson's description ; the measurement is nearly the same. 



(4.) Sorex Forsteri (Richardson.) Tab. vii. Forster's Shrewmouse. 



The first upper grinder is certainly larger, not smaller, than the two 

 next ; in other respects Dr. Richardson's description of the dentition 

 agrees exactly. f The length of the head and body is 2| inches : that of 

 the tail rather more than 1| inch. Two specimens weighed 42 grains each. 



The tail is square, and rather largest in the middle. The colour of all 

 the upper parts is nearly a middle tint of burnt umber ; the under parts 

 are light yellowish brown ; the feet are ratlier darker than the belly. 



This little animal is very common in this district, and J have fre- 

 quently found it frozen on the surface of the snow in the beech and 

 maple woods. The only two specimens which I could procure in a good 



f If Dr. Richardson's description of the dentition of Sor. Forsteri be correct 

 with respect to the first upper grinder being smaller than the two following 

 ones, this must be, I shovild think, a distinct species, but as that tooth is the 

 largest in all other species which I have examined, I am inclined to think that 

 it is a mis-print. The length of the tail also differs, but as the Doctor says 

 that his description was made from a prepared specimen, this may arise from 

 shrinking in drying. 



