42 



VEBTEBRATA. 



species diverge through their dental characters, on the one side into Mastodons, 

 and on the other into the typical Elephants, is designated by Clift, M. El&phomt- 

 oides. Others, as Owen, call thenl transitional Mastodons; while Falconer 

 regards them as more properly belonging to the Elephants, and corresponding to 

 his sub-genus " Stegodon." The ridges of the molars range from six to eight, 

 and are more elevated than in the true Mastodons. Thus far, this extinct group 

 has been foimd only in the Indian Tertiaries. This tooth, from the Miocene in 

 Ava, belongs to the Garden of Plants. Size, 6x4. Price, $1.25. 



No. 166. Mastodon giganteus, Cuv. 



Milk Tooth- This specimen is from the Pleistocene blue clay at Big Bone 

 Lick, Kentucky, and is in the Museum of the Academy of Natural Sciences, Phi- 

 ladelphia. Size, 6x3. Price, $1.25. 



No. 167. Mastodon . 



Milk Tooth. Locality unknown. 

 No. 168. Mastodon giganteus, Cuv. 



Price, $0.30. 



Tusk. The original, discovered in the Diluvium 

 at St. Catherines. Canada West, is preserved in Bur- 

 net's Museum, Table Rock, Niagara. — Size, 8 ft. 10 in. 

 x 7 in. Price, with mountings and pedestal, $10.00. 



No. 169. Mastodon longirostris, Kaup. 



Tusk of lower jaw. From the Middle Miocene, near Lyons, France, and 

 belongs to the Museum of Natural History in that city. 



Size, 20x3. Price, $2.00- 



No. 170. Mastodon giganteus, Cuv. 



Atlas. This specimen, from a Pleistocene deposit in North America, is in 

 the Cabinet of William's College, Mass. Size, 18 x 9. Price, $2.25. 



No. 171. Mastodon giganteus, Cuv. 



Dentatus. The original, from St. Catherines, Canada West (Pleistocene), 

 is in Burnet's Museum, Table Rock, Niagara. Size, 10x8. Price, $1.75. 



