of the Sciurus erythreus Group. 165 
existence of two species, by the evident affinity of Sc. Gordon 
to Sc. griseopectus and Sc. Sladeni to Sc. erythreus, as well as 
the fact that the distinctive characters of the former are those 
of a widely distributed Chinese species. Mr. W. Sclater * 
mentions the type of griseopectus as being in the Calcutta 
Museum and coming from China. This locality has doubt- 
less been placed on the specimen from its obvious affinity 
to the Chinese Sc. castaneoventris; but Blyth was himself 
ignorant of the exact locality, and as the specimen in the 
Museum agrees with his original description, we are, I 
think, justified, in default of further material, in assuming 
Assam to be its true habitat. 
Seturus Styani, Thos. 
Macrovus griseopectus, Gray, Ann. & Mag. Nat. Hist. ser. 3, xx. (1867) 
p- 282 (nec Blyth). 
Sciurus Styani, Thos. Ann, & Mag. Nat. Hist. ser. 6, xiii. (1894) 
p- 363 ; de Winton, P. Z.S. 1899, p. 578. 
Closely resembles Se. castaneoventris, but may be dis- 
tinguished by the very pale colour of the underparts, which 
are sometimes nearly white. 
Hab. Yangtze Valley. 
Type, B.M. 86.10 28.5. Between Shanghai and Hang- 
chow, Dec. 1885 (fF. W. Styan). 
Mr. de Winton has asked me to correct a note by Mr. Styan 
in his paper, quoted above, stating that probably Se. Styand 
was identical with Gray’s M/. chinensis. ‘The skull of Gray’s 
type of chinensis has since been removed and it is evident 
that MW. chinensis, which is a much smaller animal, has no 
connexion with the present group, but is allied to Se. lokriah. 
The exact locality of Gray’s type is also very vague, as 
Mr. Reeves, who procured it, collected over a large extent of 
country in India as well as in China. 
Scturus thatwanensts, sp. n. (typical form). 
Colour the same throughout and resembling Sc. erythreus 
erythrogaster (summer pelage), but slightly darker, each hair 
having two or three fulvous annulations and varying in 
colour from very dark brown on the back to greyish on the 
underparts. No red on the underparts, except, in some 
specimens, a tendency to a reddish patch at the base of the 
limbs. ‘The outer margin of the ears is slightly lighter than 
the rest of the body. ‘Tail grizzled for the first half of its 
length, then black, each hair having a long yellowish tip. 
* W. Sclater, Cat, Mamm. Mus. Cale, (1891) p. 17. 
