124 Mr. J. L. Bonliote on new Species of 



breadth (approx.) 18; interorbital breadth 6*5; greatest 

 breadth of brain-case 16 ; length of molar series (alveoli) 6. 



Uah. Mount Kina Balu, Borneo. 



Ti/pe. B.M. 93. 4. 1. 15. Kina Balu, Borneo. Collected 

 in October 1802 by Mr. A. H. Everett. 



This species is quite distinct from all others except pellax. 

 The greater length of the tail and the presence of hairs at its 

 extremity form a ready method of distinction. 



I have named this species " rapW^ from its local Bornean 

 name. 



On further investigation I find that the type of Mas Jerdxii^ 

 now in theCalcutta Museum, is only half-grown. Mr. 'J^homas, 

 in his paper on the Indian species of J/ms *, gives the 

 measurements of adult Jerdoni as — head and body 5*3 inches 

 (135 millim.), tail 7-8 inches (190 millim.) ; thus making it 

 to agree fairly well with Mus pellax, which is probably a 

 synonym. If this should prove to be so, the present species 

 is the Bornean form of Mus Jerdoni. 



Mus hina, sp. n. 



General size, colour, and characters as in Mus cremoriventer, 

 Mill. Fur very numerously beset with short soft spines. 

 General colour light ochraceous, much paler than in Mus 

 rapitj interspersed with very long black hairs, most conspicu- 

 ous on the central dorsal region. Underparts (including 

 the inner sides of the limbs) dull white, the colour being 

 sharply marked off from that of the back. Tail longer than 

 the head and body, nearly uniform in colour throughout, 

 having only a slightly lighter tinge on the underside. Hind 

 feet dark brown, edged with ochraceous, the toes and a small 

 margin to the ankle white. Fore feet whitish, slightly 

 suffused with ochraceous. 



Whiskers as well as the eye-bristle black and very long. 



Skull. — Similar to that of Mus cremoriventer, but somewhat 

 larger. The nasals, longer than those of cremoriventer and 

 tapering, end posteriorly in the same line as the prsemaxillfe. 

 The supraorbital ridges are well marked, but diverge more 

 gradually over the anterior portion of the brain- case than in 

 crtmoriveiiter. On the underside, except in size, the skull 

 does not offer any noticeable points of difference ; but the 

 afterpart of the skulls of my series being cut off, 1 liave been 

 unable to compare the size of the bullee &c. 



* r. Z. S. 1881, p. 539. 



