235 



1024. The crown of a middle molar, right side, upper jaw, of a species of 

 Equus, about the size of the Ass. 



From the pleistocene freshwater deposits at Grays, Essex. 



Presented by Wm. Ball, Esq., F. G.S. 



1025. The last molar, left side, upper jaw, of a species of Equus, of the size of 

 the Ass. 



From the drift at Kessingland, Suffolk. 



Presented by Wm. Ball, Esq., F.G.S 



1026. The third molar, left side, lower jaw, of a species of Equus, of the size of 



the Ass. 



From a pleistocene freshwater deposit in Essex. 



Presented by Wm. Ball, Esq., F.G.S. 



102/. The right astragalus of a small species of Equus, probably an Ass. 

 From the ancient landslip of Bonchurch, Isle of Wight. 



Presented by Dr. Richardson, F.R.S. 



Equus Sivalensis. 



1028. The symphysial end of the lower jaw with two of the incisors and the 



sockets of the remaining incisors and of the canines of the extinct 

 Sewalik Horse (Equus Sivalensis, Falconer). 



From the tertiary deposits of the Sub-Himalayan district, India. 



Presented by Thomas Bacon, Esq. 



1029. A portion of the upper jaw of the extinct Sewalik Horse (Equus Siva- 

 lensis), with the three deciduous molar teeth on each side, and the inter- 

 vening palate : the fourth molar, the first of the series of true molars, 

 had just begun to cut the gum. 



From the tertiary deposits of the Sub-Himalayan district, India. 



Presented by Thomas Bacon, Esq. 



J 030, A middle molar, left side, upper jaw, of a species of Horse (Equus curvi- 

 dens, Owen). It has a greater relative antero-posterior diameter than in 

 the recent Horse, but differs more especially in the greater degree of in- 

 curvation of the entire tooth. 



2 h 2 



