20 ARKIV FÖR ZOOLOGI. BAND 8. NIO 23. 



9 Saker at 7 /i 12 



Length of nasals 15, o mm. 



Greatest breadth of nasals ... 5,8 » 



Breadth between meatus auditorius 2 2, o » 



Least interorbital breadth .... 9, o » 



Length of diastema 14,5 » 



Breadth of hullen to meatus auditorius 10,4 » 

 » » palate between inner mar- 

 gins of m 2 4,o » 



Length of upper molar series . . 10, i » 



22. Hystrix bengalensis Blyth. — Blyth: Journ. As. 

 Soc. Bengal. XX, 1851 p. 170. — During the whole journey 

 I only once succeeded in shooting a porcupine. One day I 

 was out hunting deer in the forests along the Meh Lem river 

 with my native hunter Noi Khan, his dögs came across a 

 Porcupine which at once slid dovvn in a hole under a fallen 

 tree where it was shot. 



In the northern parts of the country I observed several 

 times holes in the ground made by Porcupines, but the 

 specimen I shot was the only one found. 



In Siamese Porcupines are called »Menn». 



Skull measurements: 



Length from condylus to gnathion = 130,8 mm. 



Basicranial length = 115,0 » 



Greatest zygomatic breadth = 69,5 » 



Length of nasals = 72,2 » 



Greatest breadth of nasals (posterior extremity) . . . = 39, o » 



Length of frontals = 32,8 » 



Length of diastema =» 38, o » 



Palatal length = 47,5 » 



Least interorbital breadth = 47,5 » 



Mastoid breadth = 46,5 » 



Breadth between meatus auditorius = 51,3 » 



» of palate between inner margins of m 2 . . . = 12,2 » 



Length of upper molar series (alveolar) = 30, o » 



» » lower molar series (alveolar) = 31,5 » 



23. Lepus siamensis Bonh. — Proc. Zool. Soc. 1902 

 vol. I p. 40. — Hares seemed to be very rare in every part 



