HBLMTNTHES : COLOMBO MUSEUM. 17/) 



3-4. — Distoni'wn hcpalicuin^ Lin. 



Liver of Bos indicus, [Scinde Cow] ; Colombo. 



Gf. A. Railliet, Traite de Zoologie medicale, Paris, 1895, pp. 

 342-356, figs. 219-235. 



The generic name Distomuni is here adopted instead of 

 Fasciola, which was established by Linnaeus in 1746 for 

 Distomum hepaticiim, Dendroccelum lacteum, and Schistocephalus 

 solidus, these being taken to be one and the same species. 

 Fasciola, L., is therefore a scientific impossibilitj% incapable of 

 being diagnosed. The definition of Distomum, s. str., is as 

 follows : — 



The two intestinal rami richly branched towards the outside ; 

 ventral sucker lying well forwards with the /^oriis genitalis in 

 front of it, the uterus and branched ovary behind ; farther 

 back the much-branched testis and the vitellarium at the 

 margin of the body ; parasitic in the liver of mammals. 



Paramphistotaam . 



A small sucker in front, a large sucker behind ; intestinal 

 rami long ; two testes lying obliquely one behind the other, 

 lobate, without cirrus sac ; porus genitalis in front in the 

 median ventral line with the ductus ejaciilatorius and the 

 uterus opening into it ; ovary and shell-gland behind the last 

 testis ; vitellaria lateral close beneath the surface of the body ; 

 parasitic in the stomach and bile passages of ruminants. 



35. — Paramphistonium calicoplioram, Fisch. 



Stomach of Bos indicus ; Colombo. 



Of. F. Fischoeder, Die Paramphistomiden der Saugethiere, 

 ZooL, Jahrb. Syst. XVII., Jena, 1903, pp. 541-546. 



36. — Paramphistomum gracile, Fisch. 

 Stomach of Ceylon black cattle {Bos indicus). 

 Of. Fischoeder, op. cit., pp. 520-524. 



Gnstrotliylax. 

 Amphistomids with ventral pouch which commences as a 

 transverse groove shortly behind the mouth ; genital pore inside 

 the ventral pouch, male and female genitalia immediately in 

 front of the caudal sucker. 



37. — Gastrotliylax crumenifer, Crepl. 

 Stomach of Bos bubalus, the country-bred buflEalo of Ceylon. 

 Cf. Fischoeder, op. cit.y pp. 557-563. 



