RESEARCHES IN HELMINTHOLOGY AND PARASITOLOGY. 1 55 



Dr. John T. Walker. The specimens consisted of about a dozen 

 portions of what appeared to have been four or five individuals, all 

 of them, unfortunately, without the head. Thej- were discharged 

 by a man aged 28 years, formerly a farmer, a native of Sweden, who 

 came to this country about three months since. At irregular inter- 

 vals during the last five years the patient pa.ssed fragments of a few 

 inches of the worm. According to Dr. Walker, the collective meas- 

 urements of the specimens presented he had estimated to be upwards 

 of 100 feet. In their contracted condition, as preserved in alcohol, 

 none of the mature segments measured over 4 mm. in length by 

 10 mm. in breadth. These are quite characteristic of Bothriocephalus 

 latus. The egg pouches of the uterus, centrally situated, are ren- 

 dered distinct from the ripe eggs, which gives to them a chocolate- 

 brown appearance. The genital apertures are in the median line, 

 nearer the anterior border of the segments. In Tcenia the genital 

 apertures are at the lateral margin of the segments. 



The specimens were regarded as of special interest from the cir- 

 cumstance that they were the first of the Bothriocephalus lahis that 

 Prof. L. had had the opportunity of seeing from a person living in 

 our country. 



[September, 1879. No. 474 See Bibliography.] 



Notices of some Small A)iimals on the Coast of N'e7i' Jersey. — Prof. 

 Leidy exhibited a valve of the beach-clam, Mactra solidissima, which 

 he picked up among the numerous dead and bleaching shells of 

 Brigantine Beach, N.J. It attracted his attention from its appar- 

 ently having a fungus growing upon it. The fungus-like excres- 

 cence presented a remarkable resemblance to a Polyporus growing 

 from the stem of a tree. It is an outgrow'th from the lip of the 

 shell, evidently- dependent on an abnormal condition of the mantle 

 of the living animal. 



Prof. Leidy also stated that he had picked up on the beach at 

 Atlantic City, N. J., another valve of the beach-clam, which had 

 been recently cast on shore. The inner surface of the shell was 

 covered with a multitude of the beautiful ciliated infusoria n, Frcia 

 ajupulla. The little creatures were still alive, and their curved, 

 flask-like cases were of a deep green color. 



Prof. Leidy further remarked that while at Atlantic City Mr. 

 Phillips had directed his attention to two interesting animals re- 

 cently collected. One of these he recognized as the Bicidium para- 

 siticum, a parasitic anemone or Actina, found on the large jelh'-fish 

 Cyauea arctica, so frequently thrown on .shore. The other was a 



