Miller Two New Malayan Mouse Deer. 175 



Measurements. External measurements* of adult female from Sapa- 

 gaya River, British North Borneo (No. 19,213 U. S. Nat. Mus.): total 

 length, 600; head and body, 520; tail vertebrae, 80; hind foot, 132 (118). 



Cranial measurements of type: greatest length, 107 (115)f; basal 

 length, 102 (108); basilar length, 96.5 (100); occipito-nasal length, 101 

 (104); zygomatic breadth, 49 (49); least interorbital breadth, 29 (32); 

 mandible 84 (90); maxillary toothrow, 42 (37.4); mandibular toothrow, 

 48 (42.4). 



Specimens examined. Seven skins and skulls, all from British North 

 Borneo. 



Remarks. That the Bornean Napu is distinct from that of Sumatra 

 might readily have been suspected in view of the known tendency of 

 the group to vary. Actual comparison shows that the animals are read 

 ily separable. 



*From well made skin. 



fMeasurements in parenthesis are those of an adult male Tragulus 

 napu from Tapanuli Bay, northwestern Sumatra. 



