250 Mr. A. de C. Sowerby on the 
present been described. It is like the Yezo form, S. v. 
orientis, Thos., but is separable from it as a subspecies by 
reason of its broader skull and less rufous pelages, both 
summer and winter. To this form may be given the name 
Sciurus vulgaris corece. 
The already known Hast Asiatic forms are :— 
1. Sciurus vulgaris colatus (Hodgson), of the Altai and 
Siberia. 
2. Sciurus vulgaris mantchuricus, Thos., of the Khingan 
Mountains and North and Central Manchuria, the Amur, 
and the Ussuri regions. 
3. Seturus vulgaris rupestris, Thos., of Saghalin Island. 
4, Sciurus vulgaris orientis, ‘Thos., of Yezo Island. 
It is now possible, owing to the good series of specimens 
in the British Museum, to determine with some degree of 
accuracy the distribution of these forms, and, in order to make 
the subject clear, brief descriptions of those already known 
are given here in addition to the full descriptions of the two 
new subspecies. 
1. Scturus vulgaris colatus (Hodgson). 
Mustela colatus, Hodgson, Calc. Journ. Nat. Hist. vol. ii. p. 221 (1842). 
Sciurus vulgaris colatus (Hodg.), Thomas, Proc. Zool. Soc. Lond. (1905), 
pp. 346-7 (1908). 
“Typical locality the high regions of Central Asia” 
(Thomas). This represents Pallas’s Sciurus varius, but since, 
as Mr. Thomas has pointed out in the above-cited paper, that 
name had already been used by Kerr, Hodgson’s colatus is 
the correct one. Of it Mr. Thomas says :— 
“Clear deep grey in winter without rufous suffusions.” 
It is more rufous in its summer pelage than S. v. orientis, 
S. v. coree, and S. v. rupestris, and very much more rufous 
than S. v. mantchuricus, In winter it is lighter than mant- 
churicus, darker than ordentis, less brownish than coree ; 
while its legs and feet are less black, more brownish than 
either orventis or coree. 
A specimen from west of Lake Baikal measures :—Head 
and body 225 mm. ; tail 170; hind foot 58; ear 35. 
Skull: greatest length 55; basilar length 42:2; true 
molar series 7. 
Range.*The Thian Shan and Altai Mountains, Southern 
Siberia, and probably Siberia north of the Amur basin. 
2. Sciurus vulgaris mantchuricus, Thomas. 
Ann. & Mag. Nat. Hist. ser. 8, vol. iv. p. 501 (Dec. 1909). 
Type-loeality. ‘The Khingan Mountains, N. Manchuria. 
