228 ELEPHAS COLUMBI. 



of the Elephant of Jackson County is too imperfect to be re- 

 liable for niore than a conjecture. The figure in the same 

 plate of a detached molar represents a crown resembling 

 that of the Mammoth. The anonymous author of the com- 

 munication provisionally names the form E. Jachsoni, but that 

 this means nothing more than to serve the occasion, is im- 

 plied by the fact that he names the existing species, com- 

 pared with it, as E. recens, i.e. the Indian Elephant. 



The ' Huff Collection' from Texas, in the British Museum, 

 includes (No. 20,705) a right ramus of the lower jaw, which 

 presents the outer shell of the bone entire, from the posterior 

 edge of the ascending ramus to the symphysis, but the inner 

 side broken off vertically along the middle of the alveolus 

 (the whole of the inner wall of which is removed, together 

 with the molar contained in it) ; the beak of the mentum is 

 also broken off. Being so mutilated, it is impossible to say to 

 what species it belonged. But the diastemal edge of the 

 symphysis slopes gently forwards, and with much less vertical 

 abruptness than is characteristic of the mandible of E. 

 primigenms. It is therefore not unlikely that the specimen 

 belongs to E. Columbi. 



Apart from the very numerous instances, recorded in the 

 American Journals, of the occurrence of Elephant remains in 

 most of the United States, and commonly attributed to the 

 Mammoth, there are two cases bearing upon E. Columbi 

 which require special notice. 



The first from the same reputed Texan series, in the 

 National Collection, is an enormous fragment of a cranium, 

 composed of the right maxillary, part of the malar, and the 

 right half of the palate, and containing a stupendous last true 

 molar (m. 3) in situ, in fine preservation. The posterior half 

 of the alveolus is wanting, leaving a great part of the tooth 

 exposed. The anterior part of the crown, borne on the large 

 front fang, had been ground away, but its presence is dis- 

 tinctly indicated by the fang-pit of the inner division, in front 

 of the tooth. What remains of it is composed of twenty 

 ridge-plates, with a single talon-digitation appended behind. 

 The anterior fourteen or fifteen are more or less worn, the 

 hinder ones being intact. The general plane of the worn 

 surface is quite flat, as is usual in Mammoth molars, and is 

 free from any tendency to the terraced steps seen on the 

 crown of E. Columbi. The discs of wear form narrow closely 

 compressed bands, transverse and straight, with no mesial 

 expansion. The enamel-plates are thin, and as a general 

 rule unplaited, although some of them, as in the fifth ridge, 

 exhibit a certain amount of fine crimping. The enamel- 



