102 Dissection of the Phoca cristattt. 



transversales, instead of running directly across, met in a 

 tendinous centre line, and there was but one aretenoidceus 

 obliquus. The trachea in length from its bifurcation to the 

 os hyoides was twenty-four inches, and composed of flat 

 cartilaginous rings, with undulating edges. At the junction 

 of the extremities of each ring, the ends overlap each other 

 about half an inch, and as nothing but a loose cellular 

 structure intervenes, they may, by this means, be enabled to 

 admit of much distention if necessary. 



The oesophagus, particularly near the pharynx, was com- 

 pletely studded with large mucous glands, gradually disap- 

 pearing as they approached the 



Stomach, which was simple, though large and strongly 

 muscular, exhibited a velvety coat, internally for about two- 

 thirds its length from the pylorus, its larger end being more 

 like the lining membrane of the oesophagus. Its length is 

 three feet, curved one foot upon itself. 



The intestinal tube exhibited no peculiarities, being nearly 

 invariable in size both in the large and small intestines. 



Coecum very short. 



On the mesentery, near the duodenum, a long spongy 

 glandular body was observed ; from its situation, probably 

 the pancreas, although no ducts were visible. 



The bladder, as in the human body, but more muscular, 

 exhibiting a beautiful arrangement of circular, spiral, and 

 longitudinal fibres. The prostate gland obcordate, very 

 large, and had a portion of the urethra imbedded in it. The 

 kidney large and lobulated, exhibiting a sort of reticulated 

 surface, with hexagonal compartments. 



Liver of the same colour and consistence as in man, but com- 

 posed of six distinct lobes, three large, and the same number 

 small, all with acute terminations, with numerous lobuli, 

 irregularly scattered through them. The transverse fissure 

 was very indistinct, although the vena porta? was dispro 

 portionately large. 



