DELPHINUS TURSIO. 107 



reckoned either the end of the stomach, or beginning of the gut, some 

 way before that cavity terminates in the last valvular part. There is 

 no gall-bladder. 



The pancreas is a thick body lying across the spine, as in the 

 quadruped ; the head of which lies in [the curve of] the duodenum, 

 having a fissure in its lower edge, in which passes a large blood-vessel. 

 There is no little pancreas. The spleen is a round body placed on the 

 right side of the first cavity of the stomach : it has veins running on its 

 exterior surface ; and, near it, is another small spleen as large as a 

 nutmeg. The epiploon is attached anteriorly to the lower arches of the 

 different cavities of the stomach, and posteriorly to the pancreas and 

 spleen. There was no fat in the epiploon. 



The mediastinum is short, and strongly ligamentous ; therefore the 

 heart is nearer to the sternum. There is no cartilago .viplioides. The 

 diaphragm on the fore-part comes down some way on the inside of the 

 abdominal muscles, being attached to them there instead of to the 

 sternum, &c. It is very concave, especially from side to side, arising 

 from the shortness of the sternum, and the great length of the ribs. 

 There is no pelvis, the lower part of the belly coming to an obtuse 

 point. 



The pericardium is attached to the diaphragm by a broad surface ; 

 and, as the diaphragm is attached some way down on the inside of the 

 abdomen, the pericardium of course comes also some way down on the 

 inside of the abdominal muscles. 



There is only one lobe of the lungs on each side ; and, from the 

 shape of the thorax, they come down amazingly low. At their lower 

 anterior edge they are attached to the diaphragm and lower part of the 

 pericardium by a glandular body, which I suspect to be a lymphatic 

 gland ; for there is a chain of them going along that attachment to the 

 back, which, evidently, are their lymphatic glands. There is no lobe 

 of the lung going behind the vena cava inferior, as in the quadruped. 

 The lungs at their anterior edge are only like a thick membrane. They 

 are more solid than we commonly find them in other animals, and are 

 very elastic 1 . 



The inferior vena cava is, between the heart and diaphragm, very 

 short, as also is the superior. There is a thymus gland. 



The uterus, ovaria, &c. 2 are placed in the lower part of the belly, 

 much like those in the quadruped. 



1 [The structure of the larynx is shown in Prep. No. 1170 ; that of the tongue in 

 No. 1486 ; that of the urinary bladder and ureters in No. 1275 ; that of the organ 

 of hearing in Nos. 1583, 1593 ; that of the skin in Nos. 1852—1855.] 



2 [Hunt. Prep. No. 2787.] 



