362 



Upon the head the hair tracts are somewhat complic- 

 ated; passing from the rhinarium backwards the following 

 well-marked territories are to be noted (see fig. 1) : — 



iksm 



r 



Fig. 1. 

 Hair tracts of the head (Specimen male D, Perth Museum). 



(A) Upon the dorsal surface of the anterior extremity 

 of the muzzle a field of very short hairs is uniformly directed 

 straight forwards towards the base of the naked rhinarium. 



(B) Behind this is a larger area, extending caudad almost 

 to the anterior margin of the palpebral fissure. Within this 

 area the hair, which is far longer than that in field A, is 

 directed forwards and towards the middle line. The boundary 

 line between fields A and B is marked by a very obvious hair 

 ridge. 



(C) Around each eye, upon its dorsal aspect, is another 

 territory . of hair directed backwards in a curved direction 

 above the orbital margin. This field is marked off from B 

 by a well-marked divergent hair parting. 



(D) Behind this is a radiating field in which the hair of 

 the crown of the head is directed (1) downwards and forwards 

 to the posterior angle of the eye, where at a convergent stream 

 line it meets C; (2) directly outwards on to the dorsum and 

 posterior surface of the auricle ; and (3) backwards and down- 

 wards to join the general body stream. 



