98 



THE GENERAL ANATOMY OF THE TARSII [SECT. A 



best appreciated when vertical sections of the lids (such as the 

 preparations in the Cambridge Collection) are examined. 



(2) The frontal hair (cf. Fig. 53) in Tarsius is directed caudo- 

 cranially : three divisions are recognized. Herein Tarsius stands 

 in marked contrast with most Lemurs, and indeed resembles Man 

 himself. 



(3) The source of this stream or series of hair-tracts is like 

 that of the Lemur in so far as it is nuchal in position (Fig. 54). 

 But it is single and median, contrasting in both respects with the 

 Lemurine arrangement. 



Fig. 53. Tarsius spectrum. Scheme of the hair-tracts on the face and scalp. 

 (From Schwalbe.) 



(4) No spiral vortices are to be seen on the flank in Tarsius, 

 and again a difference from the Lemur has to be recorded here. 



(5) Spirals are present however in the pectoral region of 

 Tarsius (but absent from that situation in Lemur). 



(6) Finally the region of the elbow must be noted (Figs. 54 

 and 55). In Tarsius the hair streams down over this region 

 towards the forearm and wrist without interruption. In the 

 Lemur convergent tracts meet in this part. The series of 

 contrasts thus enumerated will serve to indicate the independent 

 position of Tarsius in respect of the hair-tracts. 



The implantation of the hairs 1 is in general by groups of three. 

 The tail is however exceptional, for the grouping is lost in this part. 

 1 De Meijere, for reference see p. 67. 



