Four species of Microcotyle. 



235 



Ik 



Fig. D. 



Fig. C. 



Fig. E. 



Fig. C. Microcotyle macroura. M mouth opening. CL genital cloaca. 

 V vaginal opening on dorsal side. E egg with long anterior filament projecting 

 from the cloaca. £/uterus. F£) vas deferens. -EX lateral excretory pores. 07 ovary. 

 H testicles. D intestinal coeca. SP chitinous spicoules. 



Fig. D. Microcotyle macroura 

 genitalia. DG yolk ducts. OV ovary. 

 possibly canalis geuito-intestinalis. 



Fig. E. Microcotyle macroura. Sucke 



Semi-diagrammatic sketch of female 

 U Uterus. K duct of unknown nature, 



showing chitinous skeletou. 



