THE WADSWORTH GALLERY. 



27 



IS noticed briefly the discovery, in the Department of the Haute-Garonne 

 in Southern Franco, of an immense fossil pelvis, supposed to be on^ to tSe 

 Dmotherium. This is five feet eleven inches from one crest to the other of 

 the ihac bones, and four feet three inches in a lino cutting it veiticn ly In 

 ts lower portion are two subtriangular depressions which are evidently -ir^ 

 iculating cavties in which fitted marsupial bones. This discovery renders 



tTl- ^'ti:: ^'' t e p.notherium was a marsupial animal ; allho'h 

 IS stiL a, uncer am as before to what exact order of animal this diJclohio 

 feature was, in this case, added. aueipnio 



Mastodon gisasitciis. 



By the side of the Dinotherium, enclosed by the same railino-, is the head 

 of the Mastodon gtganteus, disinterred from a post-glacial fluvh tile deport 

 LnXfo^-^oTlJ- '' '^ the largest elepl.,toid skull thai hZv 

 been discoveied. The cranium is convex and cellular ; and from the great 



cavities in front, once protruded enormous tusks. The teeth are composed of 

 dentine with enamel spread over the crown, which is divided into several 

 transverse tubercles, each of which is subdivided into two obtuse points, the 

 transverse furrows not being filled up with cement as in the Elephant. The 

 dental formula is as follows, ' ■ ^- " ^ • - 



d standing for deciduous 



d i. -'- — ^ : i 1—1. ' p o_o . /7 m •'^ ^ • n i i . 



m, ^-f = 34. 



The molars progressively increase in size, and most of them in complexity, 

 and in their growth follow each other from behind forwards. Not more than 

 three were in use at any period on one side of either jaw. All, save the 

 penultimate, were shed by the time the crown cf the last had cut the gum. 



