1909.] 



STRUCTURE OF THE LESSER ANTEATER. 



699 



exists on the left side and has substantially the same origin and 

 course, though I can give no details so minute as I am able to 

 give of the right-hand vein. The right suprarenal body emits 

 a short vein which runs rather backwards and opens into 

 the undivided section of the postcaval. The lower part of the 

 suprarenal body behind that pai't which is connected with the 

 suprarenal vein j^roper gives off some twigs which are connected 

 with two or three slender veins supplying the parietes in front of 

 the kidney. These various veins collect into a stronger vein 

 with which their exact connections are shown in the accompanying 

 figure (text-fig. 224). This vein is twice connected with the 



Text-fiff. 224. 



Diagram of persistent right postcardinal (?) of Tamandiia. 



r. Right renal vein. Jc. Outline of kidney. S7\b. Suprarenal bod}', sjp. Spermatic 

 vein, which represents persistent cardinal and opens into renal vein &c. 



postcaval by short branches and it runs close to the postcaval 

 vein and ventrally to it, i. e. on top of it as seen in dissecting 

 the animal. The vein crosses over the renal and passes into the 

 mesorchium, joining the spermatic plexus in a way which I have 

 not exactly ascertained. Here then is a vein which lies on the 

 whole to the outside of the postcaval and which conveys blood 

 from the testis, uot only directly to the postcaval, but also to the 

 suprarenal body and to the parietes in its immediate neigh- 

 bourhood. There are at present no embryological data as to the 

 veins of the Edentata. But it is to be assumed in the meantime 

 that like other Mammals the postrenal sections of the postcavals 



