﻿OESTODE PARASITES OF MAX. 541 



Hallock's two infections with Hymenolepis nana in American soldiers 

 recently returned from service in the Philippines and the two cases of 

 American soldiers serving in the Philippines reported by Foster (see 

 page 539) are, so far as we are aware, the only published reports for 

 this species in the Islands. Through very indirect channels we have 

 heard of one unpublished case found by a medical officer of the United 

 States Army in one of the southern islands. Further, Dr. W. E. Musgrave 

 informs us that he has noticed the ova several times in making f cecal 

 examinations of natives and Americans during the past few years. 



Hymenolepis diminuta (Eudolphi, 1819) Blanchard, 1891. A stool 

 from a Chinese prisoner at Bilibid was brought to us with the diagnosis 

 of Hymenolepis nana. However, the ova were very large, and for- 

 tunately all doubts regarding the specific identity of the parasites were 

 removed by finding in the specimen from ten to twelve adult worms, 

 from 3 to 6 centimeters in length, with a rudimentary, unarmed rostellum. 

 These, upon further study of stained specimens, gave all the characters 

 of Hymenolepis diminuta. 



Unless cases have been published too recently to have come to our 

 attention in Manila, this is the thirteenth infection with Hymenolepis 

 diminuta reported for man. Unfortunately, the prisoner was discharged 

 the day the specimens were passed and no history was secured. There- 

 fore, it must remain an open question whether the infection was im- 

 ported or contracted in the Islands. There are two other specimens 

 of this species in the Bureau of Science Collection which were obtained 

 from rats in Manila. 



DIBOTH RIOCEPH ALU S . 



No infections in man with parasites of this genus have been found. 

 It is mentioned in this connection because of the strong probability that 

 it is present among the natives and because of the published opinion 

 of at least one prominent helminthologist 10 that it may be found to 

 be an important parasite in the Philippines. This expressed probability 

 is based upon the great importance of fish in the diet of the natives, 

 upon the proximity of Japan, where D. latus has been found in man, 

 and upon the further fact that the presence in the Islands of at least 

 one representative of Dibothriocephalus has been established recently by 

 finding in the intestine of a domestic eat a worm of this genus which 

 closely resembles, if it is not identical with, D. latus in its specific 

 characters. 



DIPLOGONOPORUS . 



Diplogonoporus grandis (Blanchard, 1894) Luche, 1899, the double- 

 pored, Japanese tapeworm, has also been mentioned as a possible Phil- 

 ippine parasite upon much the same grounds as Dibothriocephalus. 

 Up to the present time it has not been observed. 



10 Stile.s, Ch. Wardell : Ibid. (1906), No. 25, 9. 

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