Lyon Pigmy Squirrels of Nannosciurus melanotis Group. 53 



Nannosciurus pulcher Miller. 



1902. Nannosciurus pulcher Miller, Proc. Acad. Nat. Sci., Philadelphia, . 

 March, 1902, p. 154. Issued June 11, 1902. 



Type. Adult female, skin and skull, No. 113,131, United States National 

 Museum, from Sinkep Island, south China Sea. 



Characters. PL large member of the melanotis group with well defined 

 nape patch, the yellow-brown body not distinctly grizzled. Gnathion to 

 occipito-sphenoid suture more than 16 mm. 



Color. Upperparts and sides of body and outer side of legs like a light 

 Isabella color of Ridgway tinged with olive, or like a pale raw umber, with 

 an uneven speckling of black. Top of head darker inclining to a dull dark 

 tawny ochraceoup. Hairs of underparts with blackish slate bases and 

 ochraceous-buff tips. Hind feet indistinct, dull tawny; fore feet like back. 

 The light colored head stripe is distinctly tinged with yellow in the type, 

 in No. 123,098 with pinkish buff, and in No. 123,099 is nearly clear white. 

 The stripe is about 2 mm. wide in front and 3-5 mm. under the ear. In 

 the type there is scarcely any indication of a supraorbital halfring ; in the 

 other two specimens there is a dull pinkish-buff line about 1 mm. wide. 

 Nape patch whitish tinged with yellowish in the type, with vinaceous buff 

 in No. 123,098. External surface of ears black, internal similar to back. 

 Postauricular spot black, not so large as in melanotis, extending 2-3 mm. 

 behind ear. Preorbital stripe blackish, 1-2 mm. wide. Hairs of tail ringed 

 as follows: dull ochraceous, blackish, tawny-ochraceous, black, white, 

 black. At the tip of the tail after the second tawny ring the rest of the 

 hair is black. 



Skull. The skull is a little larger than that of the other members of this 

 group, gnathion to occipito-sphenoid suture about 16.5 mm. instead of 

 15-15.5 in the other species. 



Measurements. Head and body, 85-95 ; tail vertebrae, 70-77; hind foot 

 with claws, 23.3-23.7. Skull : Gnathion to occipito-sphenoid suture, 16.4- 

 16.7 ; greatest breadth, 16.7-17.2 ; interorbital constriction, 10-11.5. 



Specimens examined. Three two males and one female ; all from Sinkep 

 Island. 



Remarks. Nannosciurus pulcher is most like the Sumatra animal, from 

 which it differs by its slightly larger skull and slightly brighter color. It 

 is conspicuously different from N. melanolis in its yellow brown instead of 

 red brown color and in its distinct nape patch. 



Nannosciurus sumatranus sp. nov. 



Type. Adult male, skin and skull, No. 141,058, United States National 

 Museum. Collected at Tarussan Bay, western Sumatra, January 16, 1905, 

 by Dr. W. L. Abbott. Original number 3946. 



Characters. Very similar to Nannosciurus pulcher Miller, from which it 

 differs in its smaller size and less bright coloration of the upperparts ; 

 gnathion to occipito-sphenoid suture 15-15.5 mm. instead of 16-16.5 mm. 



Color. Type : General color of upperparts most like Ridgway's Isabella 



