THE GRIZZLY AND BLACK BEAR 
5. Kadiak Grizzly, Ursus horribilis middendorffi (Merriam). 
The largest of the American bears, often exceeding 10 feet in 
length, with skull of 15 inches in length. Skull similar to true Ursus 
horribilis , but said to differ in many points. The general structure, 
according to Dr Merriam, can be distinguished from either black or 
grizzly bears. 
Range: Kadiak Island; the bears of Sitka (Baranof Island), Admiralty 
Island, Montague Island, and the adjacent Alaskan peninsula scarcely 
differ from the Kadiak bear, though those of the islands are undoubtedly 
smaller. Grizzlies quite as large as those of Kadiak have been killed on 
the Alaskan Peninsula. 
6. Yakutat Grizzly, Ursus horribilis dalli (Merriam). 
The frontal region of the skull is said to be flattened instead of arched. 
Range: Yakutat Bay, Alaska. 
7. Pavlof Grizzly, Ursus horribilis gy as (Merriam). 
Said to be larger than the last named. 
Range: Pavlof Bay, Alaskan Peninsula. 
8. Sitka Bear, Ursus horribilis sitkensis. 
Teeth said to be nearly allied to the black bear and smaller than the 
Yakutat bear. 
Range: Sitka coast region, Baranof, Admiralty Island and probably 
Chichagof Island. 
9. Sheldon’s Grizzly, Ursus horribilis sheldoni (Merriam). 
Said to be allied to Ursus kenaiensis (U. h. alascensis) from which it is 
said to differ in having the condyle of the jaw more exserted (that of 
kenaiensis is said to be sessile). The skull is also higher and more massive. 
It is shorter and broader than skulls of gyas, middendorffi and dalli. 
Range: Montague Island, Alaska. 
10. Kidder’s Grizzly, Ursus horribilis kidderi (Merriam). 
Allied to the Yakutat bear, but smaller and with smaller teeth. 
Range: Alaskan Peninsula. 
I think it will eventually be accepted that all these Alaskan grizzlies 
are one and the same animal, for specimens, especially those on the penin- 
sula itself, are subject to great variation in size. On examining six large 
skins, five of which came from various parts of the peninsula and one from 
Kadiak, all brought to London in 1911, I should say that it was a bold 
man who could indicate whether they belonged to kidderi , gyas, alascensis, 
middendorffi , or dalli. 
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