140 



LINGUATULA T^NIOIDES, Rndolphi. 



Plate XVII. 



Fig. 1. Male, natural size. (Cobbold.) 



Fig. 2. Female, natural size. (Cobbold.) 



Fig. !?. Egg with contained embryo. (Lenckart. ) 



Fig. 4. Embryo escaped from egg-sliell. (Lenckart.) 



Fig. 5. Pupa nine weeks old: a, anus; fo, month. (Lenckart.) 



Fig. 6. Lingiialnla (leniiculatitm. (Lenckart.) 



AMPHISTOMA CONICUM, Rndolphi. 



Fig. 7. Piece of the rnmen of a cow, showing the p.arasite attached between th( 

 papilla; by their large posterior sucker: «, an isolated iudividnal, natnra 

 size. (Raillet.) ' 



Fig. H. Dorsal view, x2. (Blanchard.) 



Fig. 9. Lateral view, x2. (Blanchard.) 



Fig. 10. Egg of an aniphistoma, XHO. (Cobbold.) 



DISTOMA LANCEOLATUM, Mehlis. 



Fig. 11. Ciliated embryo. (Lenckart.) 



Fig. 12. Early stage of development, in which there is no digestive apparatus 



(Ercolaui.) 

 Fig. 13. Another stage : a, a, groups of cells representing the futnre testicles. (Erco 



lani.) 

 Fig. 14. Stage showing the testicles plainer, a, a; h, the rudimentary cirrhus pouch 



and c, the digestive system. (Ercolani.) 

 Fig. 15. Adult, natural size figure by its side: a, pharynx; 6, oesophagus ; c, branchei 



of intestine ; d, ventral suckers ; e, e, testicles ; /,/, deferent canals ; g, cir 



rhus pouch; h, ovary; i, albuminous glands; k, nterus; I, vagina. 



