VOL. XIX.] PHILOSOPHICAL TRANSACTIONS. 133 



immediately relieved, her swelling disappeared, her urine stopped ; and in a few 

 hours she was perfectly well. 



A year after, she fell into an apoplexy, out of which she recovered by 

 emetics and purgations, and nothing as yet appeared in the lower region of 

 her belly; but in 1691, the tumor showed itself in the same place, of the samo 

 consistence, size, and roundness, with an involuntary efflux of her urine ; and 

 with all the same circumstances as before. All possible means of relief 

 were again used, but to no purpose, as she died 2 years after its first ap- 

 pearance. 



On opening the abdomen, the great round tumor was found to be the caecum 

 dilated ; its membranes were outwardly smooth, and of the same colour with 

 the intestines, without alteration, and full of vessels of all sorts. Before I cut 

 it, I followed the intestines, and remarked that the ileum lay along the tumor, 

 being fiat against it, and returned to join the colon as is usual ; so the excre- 

 ments had the liberty to pass from the ileum to the colon, without entering 

 into the tumor, which after this I opened ; I found about 3 quarts of greyish 

 matter without smell, and of a consistence rather liquid than thick ; after that 

 I searched for a communication it might have with the guts, but discovered 

 neither hole, nor any appearance it might have ; the interior membranes were 

 very beautiful, and all the parts of the swelling, as well as of the neighbouring 

 organs, appeared very sound. 



Though I perceived no communication this tumor had with the ileum, yet 

 some must have been in the beginning of this tumor, by which it discharged 

 its gross excrements; but after this evacuation I believe that this opening was 

 stopped. The compression which the tumor made on the bladder, caused the 

 urine to run out as fast as it came in; its sphincter not being able to resist the 

 violence of the load. 



Of an undescribed Scolopendra Marina. By Thomas Molyneux, M. D. S. R. S. 



N° 225, p. 405. 



I have lately met with a remarkable marine animal,* which I take to be one 

 of the many non-descripts, which the sea, by reason of its vast extent and pro- 

 found depth, has hitherto reserved undiscovered, notwithstanding the diligent 

 researches of naturalists. 



* This animal is the aphiodita aculeata of Linnaeus, and is a native of the European seas, ge- 

 nerally frequenting the coasts, and feeding principally on the smaller kind of marine worms and 

 testacea : it is remarkable for the beautiful colour of the stiff, shining hairs with which the sides of 

 the body are beset, and which exhibit the varying lustre of a peacock's feather 



