172 



R. J. Anderson, 



In Ursus laUatus the length of the skull is one foot, and the 

 premaxilla (facial portion) four inches. The Premaxilla is neaiij" 

 one quarter of an inch across at the lower end of the nasals. She 

 bone tapers from this to its point of articulation with the frontals. 

 The measurement from the incisor alveolar margin to the lower border 

 of the nasals is 2^/^ inches. The naso - preniaxillary articulation is 

 2 inches in length. (D.) 



Ursus Arctos. Length of skull 1 foot 2 inches. Nasals are 27« 

 inches by half an inch broad. Premaxilla is 4^^ by '^s of an inch 



broad at the level of the lower 

 end of the nasals. This is in 

 excess of U. labiatus. The al- 

 veolar margin is 2^j^ inches from 

 the lower border of the nasals. 

 It is 1^/^ inches from the upper 

 border of nasals to the line of 

 articulation with the frontal. 

 The Naso-premaxillary suture is 

 27g inches. (D.) 



In the Himalayan Bear, 

 the Premaxillae reach farther 

 up and back than in Ursus 

 arctos and Ursus labiatus. The 

 distance from the alveolus to 

 nasal is ^2^4 inches. The Naso- 

 premaxillary suture is P^s inches. The Maxiliay-Vv^w\?i^\\\-Avy suture 

 is 3=^/^ inches. (D.j 



Helardos has a skull 1 foot in length. Nasal is 3 inches, Pre- 

 maxillary 4 inches. Alveolar margin to nasals 2 7j. inches. Naso- 

 premaxillary suture l^^- (t^-) 



The fen Bear (l).j of which specimens are found in bogs in Ire- 

 land and elsewhere is considered to be a variety of I'rsus arctos. 

 The Maxillary preniaxillary suture, in the specimen examined, is 3^2 

 inches long, Naso Preniaxillary suture P'/^ inches, Alveolus tu Nasal 

 2 '74 inches. 



