Mydiius found tn Jiornco and the Natuna Islands. -113 



lioad and nape, nairowint; or (.lisappcariii^ on the niMdle 

 of the back, becomiii<; distinct again on the lumbar region, 

 \vl»ere it passes without interruption on to tlie tail. Heat of 

 animal uniformly dark, without lighter intermixture on face, 

 chest, or teet. Tail short and stumpy, but its hairs extremely 

 long and forming a conspicuous brush, of which the hairs are 

 about 2 inches in length. In colour it is wholly light, 

 without basal dark ring, except inconspicuously below. 



Skull smoothly rounded, little ridged ; brain-case large and 

 swollen ; muzzle short and conical ; supraorbital projections 

 little prominent ; zygomata not widely expanded ; posterior 

 iiares broad, their upper edge without median spine. 



Approximate dimensions of the tyj)e (in skin) : — 



Head and body 340 millim. ; tail 35, with hairs 90; hind 

 foot (s. u.) 55. 



Skull: greatest length 89; basal lengtii (basion to gna- 

 thion) 75; zygomatic breadth 41; mastoid breadth 40; 

 interorbital breadth 21; breadth across supraorbital projec- 

 tions 25; intertemporal breadth 24; breadth of brain-case 

 3G'5 ; palate length from gnathion 44*5; breadth across 

 ])Osterior nares on the outer side of the pterygoids 14-0. 

 Greatest diameter of upper molar 7'1. 



Ilah. North Borneo. Type from the maiidand near 

 Labuan ; a second specimen (in spirit) from Papar {Everett). 



Ti/pe. Female. B.M. no. 76. 9. 20. 10. Collected iu 

 1876 by Mr. (now Sir) Hugh Low. 



1 he roundness of the skull is generally a youthful character 

 but the type seems fully adult, its sphenoid suture being quite 

 and its basilar partly closed. In any case, the large size, 

 conspicuously tutted tail, and the backwardly directed nape- 

 hairs distinguish this form from any of its allies. 



Mi/daus oUula, sp. n. 



Size as in J/, javanensis or rather smaller. Fur strai'dit 

 and coarse; hairs of nape, from middle of neck to crown 

 reversed forwards as in M.javanensis and sloping to a central 

 point in the middle of the crown. White marking- well 

 defined, fairly broad on the nape, narrowing on the back to a 

 width of about half an inch, or, more rarely, altogether inter- 

 rupted ; posteriorly not passing on to the tail, but broken by 

 a black space at the base of that organ. Sides of face, throat 

 chest, and upperside of feet more or less varied with oreyish 

 white. Tail much longer than in M. Javanensi's, its terminal 

 tult little over an inch in length; its basal half black its 

 terminal white. 



