1909.] 



STRUCTURE OF THE LESSER ANTEATER. 



693 



termination on the extremity of a long low fold of the duodenal 

 mucous membrane which has a recess (text-fig. 219, h.d., p. 690) 

 round the opposite extremity. It is about 2 inches from the 

 pylorus. 



The Sjileen is rather different in form from that ,of Myrmeco- 

 phaga, and is represented in the accompanying figui'e (text- 

 fig. 221), which will serve in lieu of an elaborate description. It 

 is nearly of the form of an isosceles triangle with a base line of 

 84 mm. ; the two sides measure respectively 54 mm.^and 67 mm. ; 

 the shorter side lying to the left of the body has two rounded 

 lobate projections. 



Text-fiff. 221. 



The spleen of Tamandua tetradactyla. 



The Pancreas from the duodenum to the spleen is 4 inches in 

 length ; on the other side of the duodenum it extends a long way 

 towards the liver. A lieno-caval ligament arises from the edge 

 of the spleen and is attached along the posterior border of the 

 pancreas for about half of the length of the latter ; it is not 

 inserted anywhere upon the left kidney. Arching over and 

 nearly concealing the left suprarenal body, it is inserted upon 

 the postcaval vein of its side, and can be traced down that vein 

 and along the spermatic vein right down to the left testis, on 

 which it ends. 



