740 ON SOME 'I'KKMA'J'ODK PARASITES. 



Fig.6. — Transverse section of H. dasyuri tlirougli ovary, ovicliicl, and 

 Laurer's canal;( x 110). 



Fig.7.— T..S., H. dasyurii x 180). 



Fig.8.— T.S., //. da.syuri;{x 90). 



Fi;;.9. — T.S., Afeldisia aruminala, showing ciUvited vessel and supplemen- 

 tary vessel of the excretory system ;( x 160). 



Fig. 10 — 'r.S., J/, aruminata, showing the sinus round the sucker, as well 

 as a number of vessels of the network, together with their opening 

 into the sinus;( x 40). 



Fig. 11. — T.S., M. ornithorhynchi, showing the arrangement of the muscle 

 layers, the very large shell-glaml, etc. ;( x 55). 



