18C8.] DR. J. MURIE ON THE WALRUS. 69 



On opening the stomach, which was of moderate size, I was much 

 surprised to find that it contained small round Worms, a species of 

 Ascaris, in such quantities that, when these were turned out, there 

 was altogether about half a pailful. They occupied the entire inte- 

 rior of the viscus, but were in greatest abundance at the bend of the 

 peculiar siphon-like stomach. 



The Entozoa swarmed between the rugae, and in many cases were 

 firmly attached to the membrane. The mucous membrane lining 

 the interior was of an intense red hue ; but here and tiiere were some- 

 what paler patches. More rigid examination showed that these last 

 were extensive ulcerations, the mucous membrane being entirely 

 eroded, and only the muscular and a very thin lining of submucous 

 tissue remained, preventing perforation of the walls of the stomach. 

 The chief ulcerations were some four in number, and varied in size 

 and situation. 



One, nearly circular, | of an inch in diameter, occupied the ante- 

 rior wall at a distance of between 5 and 6 inches from the cardiac 

 end. Another, somewhat diamond-shaped, 2| inches by 1| at widest, 

 also existed on the anterior wall of the viscus and about its middle. 

 In this ulcerated erosion, the mucous coat was in some parts so ex- 

 cavated underneath as to leave | inch of an overhanging lappet of 

 membrane. On a section being made vertically, the submucous tissue 

 was seen to be absent, the muscular and serous coats alone prevent- 

 ing perforation of the wall. At this part the wall of the stomach 

 had a thickness of only 0*1 of an inch, although it seemed as if the 

 muscular fibres were slightly increased in numbers here, possibly 

 from the effects of the irritation going on in the neighbourhood and 

 within. A third ulcer, of an elliptical form, 2| inches long, and 

 with more regular edges than the preceding, had been eaten away 

 on the anterior wall, close to the lesser curvature of the stomach 

 and between 5 and 6 inches from the pylorus. Between the second 

 and third erosions here described, but upon the posterior wall of the 

 stomach, another very extensive patch of ulceration had taken place. 

 This ulcer stretched between the greater and lesser curvatures. It 

 had a semilunar figure, was rather more than 4 inches long, pos- 

 sessed irregular borders, and varied from half to one inch ia width. 

 The mucous coat around had been undermined in a manner similar 

 to that described above as occurring in the second ulcer. To the 

 right and lying parallel with this large excavation were a series of 

 small circular and ovoid spots, which had been eroded in like manner 

 with those already described. The spots just spoken of varied in 

 size from about a threepenny piece to a shilling, and they evidently 

 were fast running into one single long ulcer, resembling that upon 

 their left side. Only a very few Worms were found here and there 

 in the intestinal tract ; some were observed to have passed pre- 

 viously to the horse-fat having been given. 



Dr. Baird, of the British Museum, having examined some of the 

 Entozoa, considers them new to science, and sufficiently different 

 to require a new specific name. He has jiroposed, therefore, that 

 of Ascaris bicolor, on account of a peculiarity common to most of 



