136 



ELEPHANT REMAINS IN CANADA. 



EtfELEPHAS Jacksoni. (Briggs & Foster.) 



The most perfect specimen consists of the right ramus and the 

 symphysis of a lower jaw, holding a molar tooth in a good state 

 of preservation. The condyle is broken off at the neck, and the 

 angle and wall of the alveolus on the inner face of the jaw are 

 removed, so that on the outside, the lower posterior edge, and on 

 the inside, three fourths of the whole surface of the molar are ex- 

 posed. The notch between the neck of the condyle and the co- 

 ronoid is deepened by a fracture. 



Fig. 1. — Euelephas Jacksoni, (Briggs & Foster,) Right ramus and sym- 

 physis with a molar in place. 



As nearly as can be ascertained, the length of the jaw, when 

 both rami were in connection, measured along the median line 

 through the symphysis, from the extreme point of the mandible 

 to a plane erected perpendicularly behind the ascending rami, 

 was twenty-three inches. The greatest width across the two 

 rami, from outside to outside, at about four inches in advance of 



