158 



THE ANIMAL PARASITES OF MAN 



Ut.n 



Cp. 



body run almost parallel, the head cone is short, the large ventral 

 sucker very prominent and very close to the oral sucker, while the 



eggs measure- 0*145 0*150 mm. 

 in length by 0*082 0*088 in 

 breadth. On the strength of 

 these characters R. Blanch ard 1 

 regards the flukes living in the 

 Senegambia oxen and in the 

 Egyptian buffalo as belonging to 

 Fasciola gigantica, Cobb., and 

 likewise includes the species from 

 de Gouvea's case. . This may be 

 so, but, apart from the different 

 size of the body there remain 

 peculiarities which, if the de- 

 scriptions are correct, indicate 

 a difference of species. - 



Gen. 2. Fasciolopsis, Looss, 

 1898. 



No head cone ; cuticle without 

 spines, ventral sucker large and 

 elongated posteriorly into the shape 

 of a sack ; the intestinal branches 

 are not ramified. The testes lie in 

 the posterior half of the body and are 

 much branched. Cirrus pouch long 

 and cylindrical, its greatest length 

 being occupied by the sinuous tubular 

 seminal vesicle, on which a blind 

 duct is developed. The ovarium 

 is ramified ; Laurer's canal present. 

 The oviducts occupy almost the whole 

 of the sides of the bodv. 



FIG. 90. Fasciolopsis buski (Lank), 

 (magnified). Vs., Ventral sucker ; Cp., 

 cirrus pouch ; /., intestinal fork ; Sv., 

 vitelline sac ; T., testes ; O., ovarium ; 

 Ms. mouth sucker ; Shg., shell gland ; 

 Ut., uterus. (After Odhner.) 



1 Blanchard,.R., "Mai. paras., par an." (Traite de path. s>en. [Bouchard], 1895, 

 ".. P. 733- ) 



2 Illustrations of Cobbold's species may be seen in " Cobbold's Entozoa ".(London, 

 1864), plate i, reproduced in Braun's Cl. u. Ord. d. Thierr., vol. iv ; plate i in Jo-urn, 

 comp. med. and vet. arch., 1895, P- I 4 I > an d in U.S. Dep. of apr. Bur. of an Ind. Bull., 

 No. 19, Wash., 1898, p. 50, fig. 27. An illustration of the Egyptian form may be seen 

 in Looss (I.e., plate 3, fig. 16), and has been reproduced in the Bull, quoted. No. 19., 

 fig. 26, represents Railliet's form (ibid., figs. 23 and 24, original). 



