Plate VII. 



AXINE HETEROCERCA. 



Fig. 1. The whole worm viewed from the dorsal side ; from a specimen killed under 



a slight pressure, .r, dorsal opening of unknown nature {rf. fig. 4, PI. YIII) ; 



*, point of junction of the yolk-duct and the vaginal canal. 

 „ 2. I, Chitinous framework of the posterior sucker. x 73 diam. //, terminal 



portion of the posterior arm of the median u-shaped piece. Free-hand. 

 ,, 3. Ovarian ova near the oviduct end. x 305 diam. 

 ,, 4. Section of the posterior sucker parallel to the median piece of the chitinous 



framework, x 204 diam. 



AxiNE ABERRANS. 



Fig. 5. The whole worm viewed from the dorsal side. 

 „ C. a, chitinous armature of the terminal portion of the vas deferens, x 305 

 diam. b, the same of the vagina, x 305 diam. 



A X IN E TRIANGULARIS. 



Fig. 7. The whole worm viewed from the ventral side. 

 ,, b. (I, cup-shaped organ of the genital atrium, x 204 diam. b, spine of the 

 same, x 4G0 diam. 



