1918.] H. C. Robinson & C. B. Kloss : Sciuridae. 201 



t. erythraeus centralis (Bonh.). 



Loc. cit. supra, p. l(i(j. 



Typical locality. — Lak-ku-li, Central Formosa. 

 Type. — In British Musenm. 



u. erythraeus roberti (Bonh.). 



Loc. cit. s^ipra, p. 166. 



Typical locality. — North- West Formosa. 



Type. — In British Museum. 



I have inserted all three of these races from Formosa, but in view 

 of the variability in the amount of chestnut on the underparts in C. e. 

 ruheculus, I have strono doubts as to the validity of all, two being pro- 

 bably merely seasonal forms. 



V. erythraeus erumpi, Wroughton. 



Journ. Nat. Hist. Soc. Bomhay, XXIV, p. 42.5 (1916). 



Typical locality. — Sedonchen, Sikkim, 6500 ft. 

 Type. — In British Museum. 



This species also is almost certain to possess a red-bellied summer 

 form. (The type series w^ere collected in November.) 



Calloseiurus sladeni. 



a. sladeni sladeni (Anderson). 



P. Z. 8., 1871, p. 139. 



Typical locality. — ^Thigyain, Upper Burma. 

 Type. — ^In Indian Museum. 



9371. (J Thigyain, Upper Burma, 18th January, 1868 (J. Andersoa) [C] ; 



Type of the species : skin and skull. 

 9374, 9783. ^ Thigyain, Upper Burma, 18th January, 1868 (J. Anderson) 



[C] ; Type of the species : skin and 2 skulls. 

 9372-3 (A. S. B.). Upper Burma, 1864 (Dr. C. Williams) [C] ; skins and skulls. 



The specimens collected by Dr. Williams, unfortunately without 

 precise locality, show an approach to the succeeding form in having the 

 ferruginous of the forehead less extensive. They are probably not 

 strictly conspecific with Anderson's types but cannot be more precisely 

 identified. 



b. sladeni midas (Thos.). 



Journ. Nat. Hist. Soc. Bombay, XXIII, p. 198 (1914). 



Typical locality. — Myitkyina, Upper Burma. 

 Type. — In British Museum. 



c. sladeni rubex (Thos.). 



Loc. cit. swpra, p. 198. 



Typical locality. — Lonkin, Myitkina District, Upper Burma. 

 Typ)e. — In British Museum. 



