224 BOTHRIOCEPHALUS LATUS. 



feet-like processes along the sides, by its being less fleshy, by the 

 very slender rings round it, and by its being oviparous. These 

 worms are usually found in the small intestines, particularly in the 

 jejunum and ilium ; but as they escape from these, they are some- 

 times met with in the larger, in the stomach, oesophagus, pharynx, 

 and mouth. A case is mentioned by Andral, where they caused 

 sudden death by getting into the larynx. They are also reported to 

 have sometimes penetrated into the gall-bladder and ductus commu- 

 nis choledochus, and have perforated the intestine, escaping into 

 the cavity of the abdomen, bladder, vagina, and even through the 

 parities of the abdomen ; but this has almost always happened after 

 death. They are most common in children, and more rare as age ad- 

 vances. A few instances occur of its being solitary. In the gene- 

 rality of cases, there are from thirty to forty, and Dr. Hooper 

 knew a girl, eight years of age, who voided, per anum, upwards of 

 two hundred in the course of a week. The celebrated Dr. Peter 

 Frank, of Vienna, also mentions a case in which the intestines were 

 crammed full of them. The Geoffroya inermis, or cabbage-tree 

 bark, given in powder or decoction, has been strongly recom- 

 mended for the expulsion of the round worm. It is, however, very 

 easily got rid of, by any brisk purgative. 



BOTHRIOCEPHALUS LATUS. 



The Broad Tape-JVorm. 

 Pl. XXIX. Jig. 6. 



Order Cestoidea, Rudolphi. 



Gen. Char. Body elongated, depressed, articulated ; 



head sub-quadrangular, with two and sometimes four 



depressions. 

 Spec. Char. Head and marginal fossets oblong; 



anterior articulations striated, the next very short, 



sub-quadrate, broader ; the last articulations the 



longest. 



