191 



the deflected syniphysial extremity. The first and second grinding teeth 

 are premolars ; the three remaining teeth are true molars, the first having 

 the crown complicated by three transverse eminences, the second and 

 third having two transverse eminences. 



From the miocene tertiary deposits of Epplesheim. 



The original is figured in Dr. Kaup's ' Ossemens Fossiles du Museum 

 de Darmstadt,' Add. tab. i. figg. 1, 3 and 4. Presented by Dr. Kaup. 



798. The left ramus of the lower jaw and the entire symphysis of the Dinu- 

 therium giganteum ; with the two posterior permanent molar teeth, the 

 second and third of the true series. The left deflected tusk is entire ; 

 the right tusk has been broken. The dentition shows the animal to 

 which the present magnificent relic had belonged to have been aged, yet 

 the tusks seem larger in proportion to those in Nos. 795 and 796, than 

 would depend upon a difference of age alone, and leads to the suspicion 

 that the present specimen may have belonged to a male, and those with 

 the smaller tusks to female Dinotheres. The present jaw was discovered 

 broken across iu front of the first molar, but the two parts were near 

 each other, in the miocene tertiary deposits at Epplesheim. They were 

 originally restored by Dr. Kaup, according to the ordinary analogies, so 

 that the symphysis and the tusks were curved upwards towards the upper 

 jaw, according to the figure given in the ' Ossemens Fossiles du Museum 

 de Darmstadt,' tab. iv. The subsequent discovery of the original of No. 

 795 showed that the symphysis and the incisive tusks were bent in the 

 opposite direction, as they are restored in the present specimen, and as 

 they are figured in the work above cited, Add. tab. i. fig. 5. 



Presented by Dr. Kaup. 



799. The first deciduous molar of the upper jaw of the Dinotherium gi- 

 ganteum. 



From the miocene tertiary formations at Epplesheim. 



Presented by Dr. Kaup. 



800. The third deciduous molar, right side, upper jaw, of the Dinotherium gi- 

 ganteum, Kaup. 



