MAMMALIA. 33 



boscis. The teeth, numbering five in each ramus, are all molars, and belong to 

 the two-ridged type, as in the Tapir, Megatherium, Kangaroos, and Manatee. The 

 first two answer to the third and fourth premolars. The enormous down-curving 

 tusks are, in fact, two huge recurved incisors implanted in a prolongation of the 

 symphysis of the lower jaw. They were retained in both sexes. "They were 

 probably useful (says Ansted), as pickaxes, enabling the monster to dig for suc- 

 culent vegetable food by day, while, perhaps, at night they could be attached like 

 anchors to the banks of the river or lake in which the animal habitually dwelt." 

 Cuvier and Kaup calculated that the D. must have attained the extraordinary 

 length of eighteen feet. Its body, doubtless, resembled that of the Hippopo- 

 tamus, being little raised above the ground, although the huge columns which 

 formed its legs are supposed to have been nearly ten feet in length. Eemains of 

 this genus have been found in the Miocene deposits of Germany, France, Bava- 

 ria, Austria, America, and Perim Island, associated with the Hippopotamus, 

 Horse, Ox, Antelope, Ape, Hog, Dog, Wolf, Cat, Lamantin, Morse, Sea-Calf and 

 Dolphin — all of extinct species. This magnificent fossil, the head of the Dino- 

 therium giganteum, was discovered by Dr. Klipstein, near Eppelsheim, Ehine 

 Valley, in a bed of Miocene sand and marl, containing marine shells, and is now 

 in the Museum at Darmstadt. 



Size, 4 ft. 8 in. x 4 feet. Price, with mountings, $80.00. 



No. 113. Dinotherium giganteum, Kaup. 

 Skull and Lower Jaw, reduced. 



Size, 16 x 16. Price, with pedestal and mountings, $15.00. 



No. 114. Dinotherium. Cuvieri, Kaup. 



Upper Jaw, left ramus. This fragment contains two molars. It was 

 found in the Lower Miocene, near Blois, France, and is in the Museum of Natu- 

 ral History at Lyons. Size, 6x5. Price, $1.25. 



No. 115. Dinotherium levius. 



Upper Jaw, left ramus. This fragment contains the three anterior mo- 

 lars. It was found in the Middle Miocene at St. Donat Drome, France, and 

 belongs to the Museum at Lyons. Size, 11 x 6. Price, $2.25. 



No. 116. Dinotherium levius. 



Lower Jaw. This specimen was discovered in 1861, in the Lower Miocene, 

 St. Albans, France, and belongs to the Museum of Natural History at Lyons. 



Size, 3 ft. 6 in. x 2 ft. 3 in. Price, $25.00. 



No. 117. Dinotherium Americanum. 



Lower Jaw, on pedestal. This relic of a Dinothere that once lived by the 

 swamps and estuaries of the New World, belongs to the Museum of the Academy 

 of Natural Sciences at Philadelphia. Size, 20 x 19. Price, $10.00. 



No. 118. Dinotherium levius. 



Range of five Molars, upper jaw, left ramus. These were found in 

 the Lower Miocene at St. Albans, France, and are in the Museum at Lyons. 



Size, 14 x 5. Price, $2.50. 

 3 



