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

                                function of nutrition is chiefly performed, 
& therefore that it is entitled, as well in a 
physiological as in anatomical sense 
to the appellation of ventral portion. 
The neck is a tubular projection 
from the middle of the ventral portion; its 
form is somewhat pyramidal, & at its 
free extremity it presents a quadrilateral 
enlargement whose terminal surface 
is occupied by four circular discs, & 
a ring of hooklets. See Plate 1. fig: 1(b) 
& fig: 2.
Its length varies very much in 
different cysticerci according to their 
age, this part continuing to increase 
in size after the other parts have ac
quired certain fixed dimensions. The 
membraneous parietes of the neck are of 
considerable strength & thickness, & present 
two orders of fibres, namely, a longitudi
nal or superficial set, & a transverse 
or deep one. These are connected by a 
transparent material which composes 
the chief thickness of the membrane, 
which is deeply wrinkled transversely, 
& thus formed internally into a number 
of transverse sacculi. The cavity of 
neck does not communicate di
rectly by any visible opening with that 
of the ventral portion. It is almost 
completely filled with oval laminated 
particles of earthy matter resembling 
minute calculi (see Plate 1. fig: 3) 
which effervesce briskly when put into 
diluted