JACULUS OEIENTALIS. 
309 
section, and is covered, but not very thickly, with short greyish-yellow hairs above, 
and almost white hairs below. The long hairs on the terminal fourth of the tail are 
arranged sagittally, about 30 mm. of the tip being white, and 50 mm. in front of 
this brownish black. 
The nose and the groove leading to the cleft of the incisors are nude. The 
moustachial hairs are well developed, and there is a strong and long bristle placed 
posteriorly as in the other species, but not quite so long. 
The general colour of the upper surface is sandy fawn, mottled with black, some¬ 
what similar to that of the European hare; the variegated appearance is due to the 
black tips and broad subapical yellow bands of the hairs amalgamating in patches. 
Along the sides of the body to the outside of the thigh the colour is reddish fawn, and 
although in this area the black tips to the hairs are extremely short, the fur is here 
and there streaked with irregular black lines where these minute black points come 
together. On the dorsal area and the outside of the thighs only the base of the fur is 
bluish grey, on all other parts it is white. On the upper portion of the tibial region 
the hairs are long, silky, and reddish-yellow fawn, the black tips being obsolete. The 
cheeks behind the moustaches, the whole of the under surface of the animal, the fore 
limbs from the elbows, the inner side of the thighs, the upper surface of the metatarsus, 
the hairs at the base of the tail, and a broad stripe from the latter on to the thighs 
below the distal end of the femur are white. The short hairs immediately above the 
bare area of the nose are black-tipped, while those from the moustachial area to the eye, 
those below the latter, a narrow area above it and also more or less behind, are paler 
than the rest of the head, being greyish white, but not clearly defined from the 
surrounding colour. The margin of the eyelids, the eyelashes, and long sensory hairs 
are black. The longest moustachial hairs are dusky at the base and silvery white 
distally. 
In the young the areas of colour are well defined, so much so that they recall 
the particoloration of young birds. The area between the eyes is dark brown, due to 
the presence of very black hairs among the fawn-coloured ones, while anteriorly the 
muzzle is almost golden ; the top of the head and the back of the neck to between the 
shoulders are also golden fawn; behind this, the back to the white root of the tail is 
brownish black, and this colour is clearly defined across the femur by the position of 
the white stripe, which, however, is not so well defined as in the adult. The hinder 
parts of the thighs and the outside of the upper part of the tibial portion of the 
legs are greyish brown, due to the presence of very short blackish hairs. The whole 
of the under surface of the tarsus and a small area at the base of each toe is clad with 
blackish-brown hairs, the hairs on the remainder of the toes being white. The 
quadrangular character of the tail is well seen in the young, and on the areas on which 
the blue-grey and white under-fur occurs the skin partakes of the same colours. 
