234 Journal of the F.M.S. Museums. [Vol. X, 



External measurements taken in the flesh : head and 

 body, 140 ; tail, 178 ; hindfoot, s.u., 3()-5 ; ear, 21 mm. 



Skull measurements : greatest length, 35-0 , condyle- 

 basilar length, 28-8; diastema, 8-4; upper molar row 

 (alveoli) G-0 ; length palatal foramina. 5-6 ; median nasal 

 length, 12-9; breadth combined nasals, 40; zygomatic 

 breadth, 16*0 mm. 



[The largest specimen, a male from Karangbolang 

 measures : head and body, 147 ; tail, 190 ; hindfoot, 28-5 ; 

 ear, 20. Skull : greatest length 36-0 ; zygomatic breadth; 

 17-5 mm.]. 



Specimens examined. The type, two from Tamansari, 

 Idjen Massif, 1,600 ft., Besoeki ; and two from Karang- 

 bolang, east of Schildpadden Baai, Mid Java. Compared 

 with many paratypes from Tjibodas and a large series from 

 Sodong Jerok, 4,000 ft., and Ongop Ongop, 6,000 ft., Idjen 

 Massif, East Java. 



Remarks. This seems to be the lowland and 

 submontane form throughout Java while R. b. treuhi is 

 found on the mountains at higher altitudes. 



The pelage is much less profuse and is stifTer than in 

 the mountain representative ; but 1 do not regard this as 

 a racial character for if individuals of the mountain form 

 were transferred to the plains they, or their first offspring, 

 would probably at once assume the more spin>, less furry 

 coat of the lowland animal. 



