SCIENTIFIC RESULTS OF THE MAMMAL SURVEY. 203 



Dimensions taken on the spirit specimen : — 

 Head and body 55mm., tail 96, hind foot 16" 8, ear 12. 

 Skull, see table below. 



Habitat. — Sonthern Siam : type from Chantaboon. 

 I^/^e.— Adult female in spirit. B. M. No. 97. 4. 6. 3. Collected 

 and presented by Oapt. Stanley S. Flower. 



SJcidl meastLrements of types. 

 Vandeleuria 



A NEW BUEMESE SQUIEREL. 

 BY Oldfield Thomas. 



SCIURUS PYGERYTHRUS JANETTA, Subs. n. 



The Upper Burma representative of the Pegu 'pygerythrus. 



Size and general characters quite as in true pygerythrus. Colour 

 above finely grizzled grey, with or without a bufly suffusion. Under 

 surface white or buff'y, clear on the throat, chest, middle line of 

 belly, and inguinal region, mixed with greyish on the sides of the 

 belly. A marked and prominent patch on the outer side of the 

 hip of the same colour, white or buffy, as the belly. Hands and 

 feet wholly white or buffy, as are also the light rings on the tail and 

 the middle line of its under surface. Tip of tail black. 



Skull quite as in true pygerytlirus. 



Dimensions of the type, measured in flesh. — Head and body, 198 

 mm; tail 199 ; hind foot 45-5 ; ear 21-5. 



/SfewZ^.— Greatest length 46-3; condylo-incisive lengiih 42-3; zygo- 

 matic breadth 28 ; nasals 13-3 ; interorbital breadth 16-2 ; front of 

 p* to back of m^ 8-2. 



5a?/.— Upper Burma. Type from Mandalay, 200'. Others 

 from Kyauk Myaung, Pyawbwe, Mingun, and Mount Popa. 



T^^e.— Adult male. B. M. No. 14'12-l-4. Original number 

 3150. Collected 28th June 1913, by Guy C. Shortridge. About 

 sixty specimens examined. 



This Upper Burma representative oi 8. pygerythrus is remarkable 

 for its dimorphism, specimens with clear grey backs and white 

 bellies and feet being taken at the same places and dates as others 



