46 Proceedings of the Royal Society of Victoria. 



Fig. 7. — Geoplana ventvolweata. Transverse section of 

 the specimen represented in the last figure. 

 The nervous system is coloured blue (Zeiss 

 A, oc. 4, camera outline). 



c. g. — Cerebral ganglion. 



n. s. — Nerve sheath. 



n. — Nerve to light line and ciliated pits. 

 Other lettering as in previous figures. 



Fig. 8. — Geoplana spencevi. Enlarged view of the side of 

 the anterior extremity of a spirit specimen 

 (Zeiss A, oc. 2), showing the eyes and the grooves 

 in which the pits lie. 



e. — Eyes. 



or.— Grooves. 



