234 



UNGULATA. 



at once distinguishes the specimens from Antliracotherium 

 gresslyi 1 (No. 29851). The length of the outer border of 

 the largest tooth is 0,010. Purchased, 1885. 



Hyopotamus giganteus, Lydekker 2 . 



This is a brachydont form, and the largest described species ; it 

 closely approaches Antliracotherium hyopotamoides in the structure 

 of its molars. 



Rah. North-west frontier of India. 



M. 1542. Cast of the third left upper true molar. The original is 

 from the Lower Siwaliks of the Bugti Hills, on the north- 

 west frontier of India ; and is described and figured by 

 the present writer in the ' PalEeontologia Indica,' ser. 10, 

 vol. ii. p. 160, pi. xxiv. fig. 3. A similar specimen from 

 the same locality is figured in the accompanying woodcut 



Fig. 33. 



Hyopotamus giganteus. — The third left upper true molar ; from the Bugti 

 Hills. \. Indian Museum, Calcutta. (From the ' Paheontologia Indica.') 



(fig. 33), and is likewise preserved in the Indian Museum, 



Calcutta. Presented by the Superintendent of the 



Geological Survey of India, 1883. 



M. 1541. Cast of a portion of the right ramus of a mandible pro- 

 visionally referred to the present species. The original is 



1 Infra, p. 244. 



2 Palaeontologia Indica (Mem. Geol. Surv. Ind.), ser. 10, vol.ii. p. 160 (1883). 



