RESEARCHES IN HEI.MINTHOLOGY AND PARASITOLOGY. 1 27 



Nephelis vulgaris of Europe has eight eyes, and the generative 

 apertures ere included between the 34th and 38th annuh. In the 

 species above described I could detect but six eyes, and the annuli 

 at the fore part of the body are too indistinctly defined to determine 

 the exact relative position of the generative apertures. 



The new species of Nephelis I would propose to name A^. punc- 

 tata. 



[March, 1871. No. 347. 'See Bibliography.] 



Prof. Leidy made the following remarks on 1 tenia mediocanellata ; 

 Recently one of our ablest and most respected practitioners of 

 medicine submitted to my examination a tapeworm which had been 

 discharged from a young man after the use of the aspidium filix- 

 mass. The physician, in giving an account of the case, stated that 

 he had previously treated the patient for another affection, in which 

 raw-beef sandwiches had been prescribed for food. After looking 

 at the worm, I remarked that it appeared to be the Tccnia medio- 

 canellata, a species which I had not before .seen, and added that 

 the patient had probably become infected from a larva swallowed 

 with the raw-beef sandwiches. The specimen consisted of the 

 greater part of the worm, broken into several pieces. Including 

 some lost portions, it was estimated to have been upward of thirty 

 feet in length. Unfortunately, the head proved to be ab.sent ; but, 

 so far as character could be obtained from the specimen, in the form 

 of the segments, position of the genital orifices, and the condition 

 of the ovaries, it agreed with the description given of T. mediocanel- 

 lata rather than with T. solium. From a want of acquaintance 

 with the former, I did not feel entirely satisfied that the specimen 

 actually belonged to that species. 



Subsequently my friend brought to me the anterior part of the 

 body, probably of the same individual tapeworm. He ob-served that, 

 his patient continuing to complain, he had administered another dose 

 of the male-fern, which was followed by the expulsion of the portion 

 of the worm now presented. The head of the parasite was included , 

 and it confirmed the view that it pertained to the Tccnia mediocanellata. 



The case serves as another caution against the u.se of raw flesh as 

 food. 



The description of the worm, as derived from the specimen, is as 

 follows : 



The head is white, without pigment-granules, obtusely rounded, 

 unarmed with hooks, and unprovided with a rostellum, but furnished 

 with a minute acetabuliform fovea at the summit. The four ace- 



