98 Oiive B. Davies : New Species of Chaetoyader, 



N. Nephridium. 



N.C. Nerve cord. 



N^C.O. Outgrowth from nerve cord. 



N.G. Nerve ganglion. 



N.O. Opening of nephridia to the exterior. 



O. Oesophagus. 



P. Pharynx. 



S. Stomach. 



Sp. Septum. 



Fig. i. C. australis (living animal). 



Fig. ii. C. victoriensis (living animal). 



Fig. iii. C. victoriensis, head. 



Fig. iv. C. australis, longitudinal section of anterior 



portion. 



!A. Typical seta. B. An- 

 terior group of setae. 

 C. A typical group of 

 setae. 

 Fig. vii.a. C. australis, nephridium. 



Fig. vii.b. C. victoriensis, nephridium. 



Figs, viii.-xi. C. australis, different stages in the division of 



an individual A. 

 Figs, xii.-iiii. C. australis, division of an individual B. 



Figs. liv.-xvi. C. australis, stages in the division of three in- 



dividuals C, D, E. 



