BILHARZIA, 36 



employing for this purpose the original discoverer's name. Since 

 this was done I have observed that several foreign helminthologists 

 have acted in a similar manner, but, as usually happens in such 

 cases, they have employed different generic titles, so that the nomen- 

 clature has become rather comphcated. However, letting this pass, 

 the genus Billiarzia, in itself so peculiar, is only yet known to 

 infest man and monkey. Here, it must be admitted, is an inter- 

 esting circumstance, admirably suited to the taste of those who 



Fig. 11. — Upper third of Buhaezia hojuatobia, Cubbold ; from the portal vein of an African 

 Monkey [fiercopithecus fuUginosus). X 10 diam.— Original. 



are on the look-out for affinities of habit between bimana and 

 quadrmnana. The Gercopithecus fuliginosus is an African monkey, 

 and, doubtless, in its native haunts it procures the larvae of its 

 Bilharzia from the same sources as our brethren in Egypt. Up to 

 the present time we are uninformed as to the habitat and charac- 

 teristics of its larval state, but Grriesinger conjectures that the 

 young exist in the waters of the Nile, in the fishes which therein 



