132 



PRACTICAL PABASITOLOGY 



Dst. 



Exp. 



Ut. 



H. 



Dst. 



Exp. 



FIG. 54. Pleurogenes claviger (Rud.). FIG. 55. Pleurogenes medians (Olss.). 



47:1, (After Looss'.) The lettering is the 47:1. (After Looss.) The lettering is 



same as in figs. 52 and 53. Exp. , excretory the same as in figs. 51 and 54. 

 opening. 



Dst. 



Dst. 



Ut. 



Exp. 



FIG. 56. Prosotocus confusus (Looss). 47 : 1. 

 (After Looss.) 



