TARSIUS 13 



PHiLiPPiNENSis ; but knowing how rarely a small colored figure 

 gives a correct representation of the original, I should expect to find 

 the present form inseparable from T. philippinensis. Being at 

 present unable to prove it to be the same, I leave T. sanghirensis to 

 occupy a specific rank. 



Tabsius saltator Elliot. 



Tarsius saltator Elliot, Bull. Am. Mus. Nat. Hist., N. Y., 1910, 

 p. 152. 



BILLITON ISLAND TARSIER. 



Type locality. Billiton Island, East Indian Archipelago. Type in 

 United States National Museum, Washington. 



Genl. Char. Tail sparsely haired on apical third ; tarsi hairy to the 

 ankles, and on feet to toes ; ascending ramus of mandible short, and 

 comparatively narrow, molar teeth smaller than Bornean or Philippine 

 examples. 



Color. Forehead, sides of face, neck and upper lip, and narrow 

 collar from beneath ears, passing above shoulders and across back 

 between shoulders, rusty ; top of head and back of neck to upper back 

 wood brown, hairs tipped with black, and this gives a darker hue to the 

 wood brown when seen from above ; middle of back buff ; rump ochra- 

 ceous ; thighs tawny ochraceous ; outer side of arms and outer side of 

 legs below knees ochraceous buff; inner side of arms whitish buff; 

 under parts of body and inner side of legs cream buff, base of fur slate 

 color, and this shows through, becoming the almost dominant color on 

 under parts of body ; throat and upper part of breast rust color ; hands 

 and feet buff, fingers and toes reddish brown ; tail at root covered with 

 cream buff fur ; hairs on apical third dark brown ; naked portion Prout's 

 brown grading into black in skin, "dull reddish brown in life" (Col- 

 lector) ; ears furred at base, rest bare, dark burnt umber. Ex type 

 United States National Museum. 



Measurements. Total length, 361 ; tail, 228; foot, 68, (Collector). 

 Skull : total length, 37 ; occipito-nasal length, 35 ; Hensel, 23.3 ; inter- 

 temporal width, 23; zygomatic width, 26.5; palatal length, 13.9; width 

 of palate between last molars, .90; medium length of nasals, .48; 

 length of upper molar series, 15.1 ; length of mandible, 24.1 ; length of 

 lower molar series, 12.5. Ex type United States National Museum. 



Taesius borneanus Elliot. 



Tarsius borneanus Elliot, Bull. Am. Mus. Nat. Hist., N. Y., 1910, 

 p. 151 ; Lyon, Proc. U. S. Nat. Mus., XL, 1911, p. 136. 



