1900.] JIR. F. E. BEDDARD ON BASSAR1CYON ALLENI. 665 



tongue ; there is a group of them high up in the A formed by the 

 circumvallate papillae, and at this region there are no filiform 

 papillae, which commence somewhat lower though still between the 

 limbs or the A. The fungiform papillae extend to the very apex 

 of the tongue. 



Mesenteries. — Concerning the mesenteries, I have the following 

 observations to offer, but I am unable at present to compare their 

 arrangement with that obtaining in other Arctoids. 



The free edge of the omentum was absolutely free, it having 

 acquired no secondary connections with the rectum or other 

 viscera. 



The bottom of the duodenal loop is attached for about half an 

 inch on the ascending limb by a special mesentery to the common 

 dorsal mesentery of the alimentary canal in the region of the 

 commencement of the large intestine. This is as nearly as possible 

 exactly opposite to the insertion of the mesentery which passes 

 from the gastro-splenic omentum and supports one limb of the 

 pancreas. 



Stomach. — The stomach is in no way remarkable in form. It is 

 perhaps rather elongated . The oesophageal and pyloric orifices are 

 about an inch apart, and the greater curvature is some 4| inches. 

 The extreme length of the stomach is 2\ inches. The pyloric 

 portion, as in ^lurus l , Cermleptes, and other forms, is tubular and 

 very thick-walled ; it is hard to the touch, and can be thus easily 

 distinguished from the rest of the stomach and from the 

 duodenum. The length of this portion of the stomach is nearly 

 an inch. Its orifice into the rest of the stomach is marked by 

 numerous longitudinal converging folds, and it is traversed by 

 similar folds. Externally it can be seen to commence abruptly. 

 It is to be distinguished from the duodenum by a constriction. 



The spleen is straight, wider at one end, and measures about 

 2 inches. 



The intestines measure about 62 inches. 



Although there is of course no caecum, the increase in calibre 

 marks the commencement of the large intestine. Reckoned in 

 this way, the small intestine occupies 55 inches of the length of 

 the entire tract, while the remaining 7 may be called large 

 intestine a . 



The liver is displayed in the accompanying drawing (fig. 3, p. 666) 

 from the abdominal surface. The features chiefly worthy of note 

 are in the first place the very large size of the caudate, which 

 consists of two very distinct lobes. The Spigelian lobe is also fairly 

 developed. The gall-bladder is deeply imbedded in the liver, but 

 is not visible upon the diaphragmatic aspect. The right lateral 

 lobe is larger than the left lateral, but the left central lobe is larger 

 than the right central. From the left lateral lobe is detached a 

 small separate lobe, 



1 Flower, "On the Anatomy of fflurus fulgent? P. Z. S. 1870, p. 752. 



2 Or perhaps this should be considered as rectum only. 



