2G2 riEUorrs ciiuYsorRncTL's, 



into tawny ocliraceous on rump and into nearly ochraccous-ljuff on 

 thighs. The colour of the rump and thighs thus becomes similar to 

 or rather lighter than that of the mantle, and strongly contrasting 

 with dark front of hack. — Breast, bellj', and flanks dark russet, 

 darkest (washed with chocolate) on centre of breast, palest (tinged 

 with huffy) in anal region ; base of fur everywhere paler, ochra- 

 ceons, ochraceous-bufF, or buffy. — Head, mantle, sides of neck, and 

 foreneck nearly uniform tawny ochracenus. 



d yg. ad. skin, Ceram, 7.1.1.244: Differs from foregoing chiefly 

 in the following particulars : — Back darker, glossy seal-brown ; 

 rump and thighs similar, but slightly washed with chocolate. A 

 narrow longitudinal stripe of deep maroon seal-brown along middle 

 of breast and belly, extending orer anal region and underside of 

 thighs ; sides of breast and belly, and flanks huffy cinnamon-rufous. 

 Circumocular space, sides of muzzle, chin, and throat seal-brown. 



5 ad. skin, Ceram. teeth slightly worn, 7.1.1.245 : Differs from 

 the Burn specimen only in tlie colour of the breast, belly, and 

 flanks. Centre of breast glossy blackish tinged with maroon, 

 gradually shading into chestnut on sides of breast and flanks, and 

 into chestnut cinnamon-rufous on belly and anal region. 



c^ ad. skin, Watubella I., teeth slightly worn, 61.12.11.6: 

 Similar to the young adult male from Ceram (7.1.1 .244) in the colour 

 of the head, back, rump, mantle, sides of neck, and foreneck, but the 

 whole of the breast, belly, flanks, and anal region glossy seal-brown, 

 tinged with chocolate on sides of breast and belly ; base of fur of 

 sides of breast and belly ochraceous. 



The differences in colour described above appear to be independent 

 of locality, sex, and age. The four cotypes of the species (Amboina) 

 in the Leyden Musetim and a topotype in the Berlin Museum show 

 somewhat similar individual variations, though none has the whole 

 of the underside of the body so uniformly dark-coloured as the 

 Watubella specimen. The variations, in the whole series examined, 

 may be briefly epitomized as follows : — Back glossy seal-brown or 

 washed with a j)aler shade of brown approaching dark burnt- 

 umber; rump and thighs sometimes similar to back, but inmost 

 specimens much paler (similar to mantle) and contrasting with back. 

 Breast, belly, and flanks sometimes nearly uniform dark russet with 

 paler bases to the hairs (palest-bellied extreme), but generally with 

 some seal-brown colour on centre of underparts, this dark tinge 

 sometimes confined to centre of breast, sometimes extending also 

 to centre of belly and anal region, rarely uniformly covering the 

 whole of the breast, belly, anal region, and flanks (darkest-bellied 

 extreme). Head, mantle, sides of neck, and foreneck some shade 

 of oohraceous-huff or tawny ochraceous ; circumocular region, sides 

 of muzzle, chin, and throat similar to crown or darkened with 

 seal-brown. 



Sexual differentiation. — Canines conspicuously longer and slightly 

 heavier in males than in females. Measurements taken on three 

 males and one female : upper canines, length from alveolar border 

 10-2-10*8 (males) and (female), antero-posterior basal diameter 



