CHAP. IV] THE GENERAL ANATOMY OF THE TARSII 



111 



of the limbs, I may note that in my specimen the brachial vessel 1 

 bifurcated high up in the limb, giving rise to a superficial branch 

 becoming the radial artery, and a deep division which in company 

 with the median nerve passed through the entepicondylar foramen 

 to become the ulnar vessel. According to Burmeister, the brachial 

 artery itself passes through that foramen, and bifurcates distally 

 to it. In the lower limb, a breaking up of the femoral artery to 

 form a rete mirabile has been described by Vrolik and by Burmeister. 

 In the lower part of the thigh, I have observed two main vessels, 

 one of which is the superficial femoral artery, while the other 

 represents the arteria anastomotica which is in Tarsius of large 

 size as in the Apes. 



H. The Nervous System : the Brain- (Figs. 60 — 64 inch). 

 In entering on a brief account of the brain of Tarsius, the same 



Fig. 60. 



Fig. 61. 



Figs. 60, 61, 62. Brain of Tarsius spectrum. Indications as follows: Ss. sulcus 

 suprasylvius. bo. bulbus olfactorius. pf. parafiocculus. tol. tractus olfactorius. 

 to. tuber olfactorium. top. tractus opticus, p. pons. tr. trapezium, py. pyra- 

 mid. Fig. 60. Left lateral view, nat. size. Fig. 61, vertex, and Fig. 62, basal view, 

 x2. (After Elliot Smith.) 



1 The rete mirabile described by Goppert (as quoted by Manners Smith, J. A. P., 

 1911) was not identified. 



2 Cf. especially Elliot Smith, Trans. Linn. Society of London, Vol. vin. part 10, 

 1903, p. 370. 



