248 



Hystrix, sp. 

 Hab. Italy. 



29692. The right upper premolar ; from the Upper Pliocene of the 

 Val d'Arno, Italy. This specimen is smaller than H. refossa 

 (No. 34959), and the folds of the enamel are apparently 

 simpler. Presented ~by ike Earl of EnnisJcillen, 1855. 



29692 a. Terminal portion of an incisor ; from the Upper Pliocene 

 of the Val d'Arno. Egerton Collection. Purchased, 1882. 



Hystrix sivalensis, Lydekker 1 . 



This species is founded on the evidence of a fragment of the man- 

 dible, from the Siwaliks of the Punjab, India, figured in the accom- 

 panying woodcut (fig. 32), and is described by the writer in the 



Fig. 32. 



pm. 4. m. 1. m. 2. m. 3. 



Hystrix sivalensis. Fragment of the right ramus of the mandible ; from the 

 Siwaliks of the Punjab. }. Indian Museum, Calcutta. (From the 

 ' Palseontologia Indica.') 



' Palaeontologia Indica,' ser. 10, vol. iii. p. 109 ; the characteristic 

 point of the specimen being the short crowns of the cheek-teeth. 

 Hab. India. 



15923. The greater portion of the cranium and mandible of a young 

 (Fig.) Porcupine ; from the Pliocene of the Siwalik Hills, India. 

 This specimen, of which the cranium is figured in the 

 accompanying woodcut (fig. 33), has been described and 

 figured by the present writer in the ' PalaBontologia 

 Indica,' ser. 10, vol. iii. pp. 110, 111, and provisionally 

 referred to the present species. The cranium has suffered 

 considerably from crush, and has lost the nasals and a 

 part of the maxilla. In the upper jaw there are only two 

 teeth, and but three in the lower ; thus showing that the 

 1 Eec. Geol. Surv. Ind. vol. xi. p. 100 (1878). 



