ENTOZOA. 



51 



without the head. Eighteen days afterwards, NoufFer's 

 remedy, which consists of a preparation of fern seed, 

 was resorted to, whereupon the remaining part of the 

 worm, twenty feet in length, with the neck and head, 

 came away, and ail the symptoms of the malady disap- 

 peared, and had not returned in 1838, when this instruc- 

 tive case was recorded. 



The head and neck are represented in this diagram 

 {fig- 24.). You will see that it closely resembles the 

 figure which Bremser first gave of this important and 

 characteristic part of the broad tapeworm. Instead of 

 the coronet of hooks and circle of suckers which cha- 

 racterise the head of the Tcenia solium, it forms a simple, 

 elongated, sub-compressed enlargement, with an anterior 

 obtuse prominence, perforated by the mouth {Jig. 24, a), 

 and having two lateral sub-transparent parts separated 

 by a middle opake tract. According to Bremser, the 

 margins are slightly depressed, forming what are termed 

 the Bothria or pits {Jig. 24. b, b), whence the generic 

 name of this tapeworm. There was no trace of joints 

 within two inches and a half of the head. These are at 

 first feebly marked ; then the segments expand posteri- 

 orly, and slightly overlap the succeeding ones : their 

 Head and neck length nearly equals their breadth. At sixteen inches 

 Bothr. latus. from the head a slight prominence at the middle line, 

 and near the anterior part of the ventral surface of the segment, 

 24 indicates the genital apertures. These become conspic- 



uous in the posterior segments, and are two in number, 

 situated pretty close together on the same prominence 

 (Jig. 25.). 



The tegumentary and muscular systems appear to re- 

 semble closely those in the Tcenia solium. Dr. 2-5 

 Eschricht could not discern any trace of nerves* 

 Of the nutrient system, he obtained evidence 

 only of the two submarginal longitudinal ca- 

 nals : by placing the recent segments in dilute 

 acetic acid, he coagulated the contents of these 

 canals, which were then manifest by their opa- 

 city and whiteness. They were doubtless filled 

 with the chyle of the unfortunate sufferer. 

 How the chyle is absorbed by the Bothrio- 

 cephalus Eschricht was unable to discern : he supposes, 

 Bothr. latus. analogically, by an anterior suctorious mouth, leading to 



E 2 



Bothr. latus. 



