252 Mr, A. de C. Sowerby on the 
immature male :—Head and body 190 mm., tail 174, hind 
foot 55, ear 32; (2) an adult male:—Head and _ body 
208 mm., tail 178, hind foot 57, ear 32. 
Skulls: (1) greatest length 48°8, basilar length 37, length 
of true molar series 7; (2) greatest length 50°7, basilar 
length 39°5. 
Range. Saghalin Island. 
4, Sciurus vulgaris orientis, Thomas. 
Proc. Zool. Soc. Lond. (1905), vol. ii. 1906, pp. 345-347. 
Type-locality, Aoyama, Hokkaido (Yezo), Japan. 
Of this form Mr. Thomas says of its winter pelage:— 
“ The whole of the Hokkaido examples are strongly suffused 
along the head, dorsal area, and base of tail with a colour 
between ‘ mars-brown ” and ‘ vinaceous-cinnamon ” of Ridge- 
way, though paler than either. Sides clearer and more 
silvery grey, especially on two patches on each side, behind 
the shoulders and in front of the hips. Throat, chest, and 
belly pure sharply-defined white, the hairs white to their 
roots. ar-tufts, hands, and feet blackish, more or less 
speckled with fulvous. Tail broadly washed with black, the 
basal part of the hairs more or less greyish fulveus. 
“Tn summer pelage the ground colour (apart from melan- 
ism) is dull reddish brown, with dark red ears and feet, and 
perhaps sometimes a more or less red-washed tail.” 
It is rather a large form, coming next to mantchuricus in 
size. It is easily distinguishable from rupestris on this 
account, as well as by its lighter, more rufous or brownish 
winter coat, and less inclination towards melanism in summer 
pelage. 
Measurements of type (B.M. no. 6.1.4.128), an adult 
male :— 
Head and body 244 mm.; tail 175; hind foot 60; ear 34. 
Skull: greatest length 54; basilar length 43 ; length of true 
molar series 7. 
Range. Yezo Island, N. Japan. 
-  §, Sceturus vulgaris core, sp. n. 
~~ Seturus vulgaris, Linn., Thomas, Proc. Zool. Soc. Lond. 1907, p. 464. 
The specimens on which this new subspecies is based are 
in the British Museum Collection, two having been taken in 
the type-locality in November, 1906, by the late Mr. M. P. 
Anderson, and two by Mr. C. W. Campbell in January, 
1889, at Seoul. A fifth specimen in the collection which 
must be referred to this form was taken by Sir H. E. M. James 
in South Manchuria (probably in the Yalu basin) in June, 1886. 
