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

                                then, in a thickening which appeared at the fore part 
of the very simple vermiform body, was developed the 
characteristic head of the Cysticercus with its suctorial 
disks and circlet of hooks. No trace of the six embryo-
hooks could be detected in connexion with the cysticerci. 
These observations of Leuckart were published in 1855, and 
were not known to the Author when he first commu=
nicated his researches to the Royal Society in the sum=
mer of that year. Allowing for differences not unlikely 
to modify the process in different cases, the facts observed 
by Leuckart are in no way irreconcileable with the 
conclusions arrived at in this Paper; and after due 
consideration of the present state of knowledge con=
cerning the relations subsisting between the tape-worm 
and Cysticercus, the Author sees no reason to dis=
trust the evidence on which he has represented 
the <u>Cysticercus cellulosae<\u> as immediately developed 
from a peculiar vermiform animal, whatever <s>may<\s> 
be the mode in which the latter may be derived from 
a taenia-embryo.
Finally, the facts made known in this communi=
cation may perhaps serve to throw light on the nature 
of certain bodies of an ambiguous description observed 
by Von Hessling + to be occasionally present in the muscular 
tissue of the heart of the Ox, Sheep and Roe Deer. These 
objects appear under the form of oval aggregations of 
granules of a peculiar kind, inclosed in an outer 
capsule and parted into several smaller masses some=
what like the segments of a yolk in the process of 
division. Without hazarding an opinion as to their 
destination, von Hessling compares these bodies to the 
elongated tubular capsules filled with similar 
spore-like granules, which were discovered in the 
abdominal muscles of mice by Miescher and 
+ Zeitschrift fur wissenschaftliche Zoologie, vol. V. p 196.