PLATE VIII. 



All of Dokus arfus. 



Fig. 173. Parasite in the kidney of haddock. Of the same magnification as 

 Figs. 174 and 177. 



174. Cyst with many-branched parasite in the kidney of haddock. Of the 

 same magnification as Figs. 173 and 177. 



175. Theoretical diagram of the formation of the cyst. Stage subsequent 

 to that shewn in fig. 13. 



176. Parasite in the muscle of haddock. Enlarged. 



177. Cyst with large larvse in the kidney of haddock. Larva, a, was about 

 •12 mm. long. Of the same magnification as Figs. 173 and 174. 



178. Parasite in the muscle of haddock. Isolated body. "2 mm. long. 

 Enlarged. 



179. Cyst in the muscle of haddock, teazed apart- Enlarged. 



