new Squirrels of the Genus Tamiops. 305 
suture to gnathion 27; zygomatic breadth 23:7; nasals 
12:2 x 5:2; interorbital breadth 13°5; breadth of brain-case 
18°7 ; palatilar length 15°5 ; upper tooth-series, exclusive of 
p®, 66; upper molars only 5. 
' Hab. Northern Yunnan, in the Yang-tse Valley, at 
27° 20' N., and about 101° EK. Alt. 8000’. 
Type. Adult, but not old, male. B.M. no. 20. 1. 16. 6. 
Original number 9. Collected September 1918 by George 
Forrest. Presented by Col. Stephenson Clarke. Three 
specimens, two adult and one young. 
As shown by a representative specimen received from the 
Paris Museum the 7. sewinhoet of Moupin is a far larger 
animal than any of the other species as yet described. Now 
this handsome T. clarke: turns up, equalling TJ. swinhoei in 
size, but widely different from it in its conspicuously con- 
trasted coloration, paler general tone; and white belly. No 
other species appears to need comparison with the new form. 
Tamiops maritimus forresti, subsp. n. 
Very similar to the form to which Bonhote* applied the 
name “ Scturus macclellandi swinhoei, M.-Edw.,” the medium- 
sized strongly striped Tamiops of South-eastern China. But 
in the first place there is no doubt that the Chinese*forms, 
with interrupted subocular stripe, should be separated speci- 
fically from muacclel/andii, so that that name disappears, and, 
secondly, it has since proved that the true swinhoei is the 
much larger species of Sze-chuen, equalling in size 7’. clarke, 
and hence the smaller species is certainly not swinhoei. 
But it has also been found out that in this genus, at least 
in some of its forms, the blackness of the subdorsal dark 
stripes is not valid as a specific character, being a seasonal 
one, though not occurring in every individual. The same 
phenomenon is also found in certain forms of Funambulus. ° 
In consequence, the two Chinese subspecies called by 
Bonhote “ S. macclellandi maritimus” and “ S. macclellandi 
monticolus”’ should apparently bear the names of ZYamiops 
maritimus maritimus and T. maritimus monticolus respec- 
tively, while his swinhoed is the black-striped phase of the 
latter. 
On this basis [ may describe Mr. Forrest’s Yunnan speci- 
mens as follows :— 
Like 7. maritimus monticolus when with three well-marked 
* “On Squirrels of the Sczwrws macclellandi Group,” Ann. & Mag, Nat. 
Hist. (7) v. p. 50 (1900). 
Ann, & Mag. N. Hist. Ser. 9. Vol. v. 21 
