On the Structure and Development of the Cysticercus cellulosae, as Found in the Pig, by George Rainey

these quadrupeds; <u>Cysticercus fasciolaris<\u> has been pro= duced in mice from the <u>Taenia crassicollis<\u> of the cat; <u>Cysticercus pisiformis<\u> has been generated in rabbits from embryos of the <u>Taenia serrata<\u> of the dog; and, not to mention other cases, pigs have become infested with the <u>Cysticercus cellulosae<\u> after receiving with their food ripe segments of the <u>Taenia solium<\u> <s>from<\s> of the human subject. Moreover Stein found in the alimentary canal of the larvae of <u>Tenebris molitor<\u> the usual six-hooked embryos of an undetermined species of taenia, and on the outer or peritoneal surface of the stomach of the same larvae, numerous encysted cysti= cerci, on nearly all of which the six hooklets shed by the embryo could be perceived adhering to the cyst and thus clearly showing the connexion of the two. In like manner Meissner found cysts containing cysti= cerci in the body of the slug, and although he did not discover taenia-embryos, he found what were <s>unequivocally<\s> unmistakeably their six hooklets attached to the body of the Cysticercus. While, however, the proof of the derivation of the Cysticercus from a taenia-embryo thus seems com= plete, the process of conversion of the one into the other has not hitherto been followed completely in its different steps. The observations of Leuckart on this head are perhaps most to our present purpose. He found that on giving the ova of <u>Taenia serrata<\u> to rabbits a numerous brood of <u>Cysticercus pisiformis<\u> appeared in the liver, which situation he conceives they might have reached by the route of the vena portae. At first they were very small white bodies having none of the marks of cysticerci; they afterwards enlarged, assumed an oblong shape and, piercing through the substance of the liver, escaped into the peritoneal cavity, then
Please login to transcribe
Manuscript details
- Author
- George Rainey
- Reference
- PT/56/8
- Series
- PT
- Date
- 1857
- IIIF
-
(What's this?)This is a link to the IIIF web URL for this item. You can drag and drop the IIIF image link into other compatible viewers
Cite as
On the Structure and Development of the Cysticercus cellulosae, as Found in the Pig, by George Rainey, 1857. From The Royal Society, PT/56/8
Comments