Natural History of the Mammalia of India and Ceylon

by Robert Armitage Sterndale

DESCRIPTION.—Upper parts dark olive grey; lower parts rich orange red; the same colour being more or less continued along the under surface of the tail; the orange colour extends over the inside of the limbs, the front of the thigh and on the feet; the fore-limbs are dusky outside, with pale rufous yellow feet. Its chief distinguishing mark is a brown well-defined dark band on the flanks between the colour of the upper and lower parts.

[NO. 282. SCIURUS BLANFORDII.]
Blanford's Squirrel.

HABITAT.—Upper Burmah.

DESCRIPTION.—Pale grey above, finely punctulated with black and grey; tail concolorous, with a black tip; under parts pale orange yellow; hands and feet yellow. Dr. Anderson shot a female at Pudeepyo, in the beginning of January, which had a distinct tendency to the formation of a dusky lateral stripe, as in the last species; the under-parts also were much more rich orange than in the type of this species. In the grey phase of S. caniceps that species is so like S. Blanfordii in the colouring of the upper parts and feet that it is almost impossible to distinguish them, but, according to Dr. Anderson, "on examining the under parts it is found that in these phases of S. caniceps they are grey, whereas in S. Blanfordii they are a beautiful rich orange, and the feet are yellow."

Before proceeding to the next species, which is a better marked one, I will quote one more passage from Dr. Anderson's careful comparison of the four preceding squirrels. "S. Phayrei corresponds in the colour of the upper fur to the yellow phase of S. caniceps, and the tail is the same as in it, having a black tip, which is the character also that that appendage has in S. pygerythrus. In some examples of S. Phayrei the dusky or blackish is not confined to the lateral line, but extends over the outside of the fore-limbs, the feet being always yellow in squirrels presenting these characters. Some specimens of S. pygerythrus show a distinct tendency to have yellow feet, and further research will probably prove S. Phayrei to be only a variety of S. pygerythrus. When Blyth first encountered this form, he simply regarded it as a variety of S. pygerythrus, and I believe his first opinion will be ultimately found to be more in accordance with the real interpretation of the facts than the conclusion he afterwards adopted. In the Paris Museum there is an example of S. Blanfordii from Upper Burmah which distinctly shows a dark lateral streak, so that, taking into consideration the other examples to which I have already referred, there seems to be a presumption that it and S. Phayrei are one and the same species, and that they are probably identical with S. pygerythrus; moreover, my impression is that a more extensive series will establish their identity with S. caniceps. This view of the question is also supported by a small series of these squirrels in the Leyden Museum from Tounghu in Upper Burmah, presented by the Marquis of Tweeddale. From the characters manifested by these squirrels, and the circumstances that they were all shot in one locality, they are of great interest. One is an adult, and in its upper parts it exactly resembles S. Blanfordii, also in its yellow feet and black tip to its tail, but, like S. Phayrei, it has a broad blackish-brown lateral stripe. The others are smaller, and resemble the foregoing specimens in all their characters, except that they have no dark lateral streak, and that the feet of two are concolorous with the upper parts, while in the remaining squirrel the feet appear to be changing to yellow, as in the adult. The two former of these, therefore, conform to the type of S. pygerythrus, but the fur of the upper parts is greyer and not so richly coloured as in it, but the annulation of the fur has the same character in both. The remaining specimen in its features is distinctly referable to S. Blanfordii" ('Anat. and Zool. Researches,' p. 232).

[NO. 283. SCIURUS ATRODORSALIS.]
The Black-backed Squirrel.

HABITAT.—Burmah and the Malayan countries. Common in Martaban.

DESCRIPTION.—There are two phases of colouring, in which both old and young of this species are found: with the black on the back, and again without it. In the latter case the upper parts and feet are a yellowish-rufous. The upper surface of the head, as far back as to include the ears, orange red; under parts and inside of limbs more or less chestnut; under surface of neck orange yellow, with a centre line of the same on the chest; tail variable—in the young it has seven alternate orange and black bands, the orange being terminal; but the adults have sometimes only five bands, the apical one so broad as to make a rich orange tail with yellowish-white tipped hair. In those with black backs the colour of the upper fur is less fulvous, and the chestnut of the lower parts is darker; in some the tail has broad orange tipped hairs, whilst in others it is, with the exception of the base, wholly black, and not annulated. These differences in colouring are not sexual, nor due to age. The skull of S. atrodorsalis resembles that of S. caniceps, but is broader, with a somewhat shorter muzzle, has smaller teeth, and would appear to be, from comparisons made by Dr. Anderson, smaller.

[NO. 284. SCIURUS ERYTHRÆUS.]
The Assam Red-bellied Squirrel.

HABITAT.—Assam, Garo hills, Munipur.