50 



Ein AK Lönnbeeg, 



Some observations on a foetus of Boselaphus tragocamelus Pallas. 



The dimensions of this foetus are: Length of head about 14 cm. 



Distance from the neck to the root of the tail: 38 cm. 



At the first look it seems almost naked with the exception of 

 the head, the tail and the hindportion of the tighs from the tail and 

 downwards to about midway between knee and heel-joints. A close 

 examination reveals, however, that short hairs are just beginning to 

 grow out everywhere. The hair that covers the face is dark brown. 

 The hair of the nose is reverted or directed upwards up to a point 

 between the orbits where it diverges like a fan. In that same point 

 the reverted hair from t ho nose meets the hair from the frontal whirl, 

 in the middle of the forehead. From this latter the hair radiates in all 

 directions. The hair on a strip above the orbits is directed backwards 

 in continuity with the hair of the nose. The hair of the occipital re- 

 gion is directed forwards, diverging somewhat in the parietal region. 

 Just above and behind the orbits where the horns are in the adult is 

 a bare spot towards which the hair radiates from three directions viz. 

 the mid-frontal whirl, the supraorbital strip and the parietal region. 

 On the sides of the head the hair is directed downwards from the 

 temporal region to the snout. The upper eyelid is provided with a 

 number of bristles distributed in three or four irregular longitudinal 

 series, below these it is lighter in colour. Just above the corner of 

 the eye there is also a light spot. Right below the eye on the middle 

 of the cheek is a light spot with two or three bristles. A little below 

 and in front of this is another light spot with one bristle. There are 

 also some scattered bristles on the sides below the lower lip. The 

 chin and a spot on each side of the black naked rhinarium is white 

 haired. In the middle of the surface of the lower jaw there are three 

 white bristles. The distal half of the ears is mostly blackish on the 

 outer surface but within it is white-haired with two black spots at the 

 posterior margin. 



From this description compared with that given above concerning 

 the foetus of Gephalophus ogilbyi is apparent that the arrangement of 

 the hair of the head is different in these two genera. The bristles of 

 the eyelid are also in the Bosektphus-ioetus arranged in more rows 

 than in Gephalophus. But, on the other hand, the sensitive spot above 

 the anterior corner of the eye, that below the eye, that underneath 

 the lower jaw etc. correspond to similar spots with bristles in the 



