53 . fawn. 
seed, and hence called vermes cucurditinus, each 
joint incorrectly supposed to be endued with in- 
dependant life. It is the first of two kinds and 
called the bread tape worm, (iznia lata and Bo- 
thriocephalus latus,) occasionally ending in two 
processes one larger than the other, most general- 
ly inone. Its head resembles that of the second 
species, called tenia solium, or long tape-worm. 
‘The immense length of the tape-worms, (Boerhaave 
saw one 30 ells long, and Brera mentions one in the 
cabinet of the University of Pavia more than 230 
feet long,) together with their tenaciousness of po- 
sition, renders it extremely difficult to dislodg 
them entire. When their partial extrusion from 
the body takes place, the residual articulations 
speedily increase, and reproduce all the distres- 
sing symptoms, peculiar to their presence. Not- 
withstanding their usual tenacity of lodgement, 
they sometimes are spontaneously discharged, ei- 
ther partially or entire, by stools, from persons 
who had not previously experienced any premoni- 
tory signs of theirexistence. Instances mentioned 
of their having dropped from a person, by any ex- 
ertion in walking. The gourd-seed teniais read- | 
ily known from the other by having a small aper- 
ture (osculas, little mouths) on the centre or mid- 
dle of the flatened surface and only on one side, 
other does very frequently. The joint of the 
gourd-seed worm are easily separated from each 
other when the animal is alive, each joint thus 
separated has the power of retaining life a consid- 
erable time. ‘Tape worm infects the smaller in- 
testines chiefly, and it sometimes occupies so large 
a space of the jejunum as to give the sensation to 
the patient of a ball rolling about, when he turns 
in bed. ‘They however sometimes get into the- 
© 
. 
