134 



ME. F. E. BEDDABD ON THE YISCEBAL ANATOMY [Feb. 5, 



spoon-like fashion at one end. The organ is not T-shaped, as in 

 D. inustus and the Kangaroo. 



The small intestine measures 95 inches ; I could only count 

 6 Peyer's patches in it. The conjoined bile and pancreatic ducts 

 open into it at a distance of five inches from the pylorus. The 

 larr^e intestirie neasured 38 inches ; it has, as has the caecum, plenty 

 of Peyer's patches. Mr. Dobson, in recording ' the existence of 

 Peyer's patches in certain Insectivora, Rodentia, Marsupialia, and 

 Lemurs, omitted to mention that Owen had discovered these 

 structures as existing in the colon of Dendrolagus inustus. 



The cce.sum of the present species appears to be smaller than 

 that of D. inustus, in which animal the measurements given by 

 Owen are 5x5 inches. I found it to be 2 inches only in length 

 and about the same in diameter. The caecum is attached to the 

 small intestine by a sheet of membrane. From the opposite side 

 of the small intestine a fold comes over, which is attached to the 

 first-mentioned membrane. It is for the most part anangious. 

 The blood-vessel supplying the caecum comes across from the ileo- 

 colic mesentery on the opposite side, where there is no connecting 

 fold of membrane. The arrangement of the membranes supporting 

 the caecum is precisely the same in Petrogale j^enicillata and in 

 Halmaturus hennetti ; but in the former, at any rate, the accessory 

 fold which joins the ileo-caecai fold bears a blood-vessel along its 



free edge. 



§ Tlie Liver. 



I have thought it worth while to have a drawing made of the 

 liver of Dendrolagus (fig. 3), which was not particularly described by 



Fig. 3. 



Liver of Dendrolagus ; abdominal surface. 



8p., Spigelian lobe ; L.L., left lateral; L.C., left central ; B.C., right central ; 

 E.L., right lateral ; Ca., caudate ; G, gall-bladder. 



J. Anat. Phys. 1884. 



