418 ENTOZOA. 
the body. Each of the latter has one or two pores differently situ- 
ated, according to the species, which appear to be the orifices of 
ovaries that are placed in the thickness of the joints, where they are 
sometimes simple, and at others ramous. The Teenie are among 
the most cruel enemies of the animals in which they are developed, 
and which are apparently exhausted by them. 
In some, there is no projecting part in the four suckers. Such in 
Man is the 
T. lata, Rud.; T. vulgaris, Gm.; Geetz., XLI,5—9. (The 
Common Tape- worm.) The joints are broad, short, and fur- 
nished with a double pore in the middle of each side. It is very 
frequently twenty feet in length, and it has been found upwards 
of a hundred. ‘The large ones are nearly an inch wide, but the 
head and anterior portion of the body are always very slender. 
This species is extremely injurious and tenacious. The most 
violent remedies frequently fail to expel it. 
In others, the prominence between the suckers is armed with little 
radiating points. Such as the 
T. solium, L.; Goetz., XXI, 1—7; Encyc., XL, 15—22, and 
XLI, 1—7; Ver solitaire of the French. Its joints, the ante- 
rior ones excepted, are longer than they are wide, and have the 
pore placed alternately on one of their edges. It is usually from 
four to ten feet in length, but much larger ones are sometimes 
met with. The vulgar ideathat but one of these animals is 
found at a time in the same individual is very far from being 
true. Its detached joints are styled cweurbitinit. It is one of 
the most dangerous of the intestinal worms, and the most diffi- 
cult to expel *. 
From these ordinary Teenie, on account of the form of their head, 
are distinguished the 
TricusprpariaA, fiud., 
Now called Trianophora by the same author, where the head, di- 
vided as it were into two lips or lobes, instead of suckers, has two 
tri-pointed spinuli or strings, on each side. 
But a single species is known, the Tenia nodulosa, Gm. 
Geetz., XXXIV, 5,6; Encyc., XLIX, 12—15. It inhabits va- 
rious fishes, the Pike, Perch, &c. + 
Boruryoceruatus, Rud., 
Where the only suckers possessed by the head are two longitudinal 
fossulz placed opposite to each other. 
They are found in different Fishes and in certain Birds {. 
* For the other species, see ae Hist., II, 77, and Syn., 144. 
+ Rad. Hist.,:1}; part II, 32, and Synop. 135. 
+ Rud., Hist., il, p. ii, 37, and El., 136. For the genus Bothryocephalus and 
its subdivisions, see the Zoological Fragments of F. S. Leuckardt, No. 1, Helm- 
steedt, 1819. 
