64 Proceedings of the Royal Society of Victoria. 



Circulatory system. Dorsal vessel single ; hearts in segments 

 9-U. 



Excretory system. Meganephric ; nephridiopores difficult to 

 detect, at the level of the eighteenth seta from the ventral 

 surface. 



Reproductive system. Testes, two pairs, in segments 10 and 

 11, into which the ciliated rosettes open. 



Spermiducal glands, small, coiled, tubular, in segment 18. 



Sperm sacs, racemose, attached to the posterior wall of segment 

 9 and the anterior of segment 12. 



Ovaries in segment 13, into which the oviducts open. 



Spermathecae, 5 pairs, in segments 5-9, each consisting of a 

 spherical sac with a minute diverticulum. 



Habitat. The Upper Endeavour River, Queensland. I am 

 indebted to Mr. C. French and Mr. Dudley le Souef for specimens 

 of this fine worm, the purple colour of which, together with its 

 remai-kably iridescent clitellum, render it very distinct. 



(13). Dipopochaeta maplestoni, sp. n. (Figs. 97,98, 99). 

 Spirit specimens 6^ inches long, \ inch broad ; number of 

 segments 185. 



Prostomium scarcely at all dovetailed into the peristoniium. 



Clitellum extending over segments 14-17, but not including 

 the mid ventral part of 17. Accessory copulatory structures, a 

 broad band on segment 19 ventrally. 



Setae. Four on each side in front of the clitellum, behind this 

 the number does not appear to exceed 7 on each side. 



Male pores on papillae on segment 18. 



Female pores on segment 14. 



Spermathecal pores. Two pairs at the level of the ventral 

 setae on each side, between segments 7 and 8, 8 and 9. 



Dorsal pores. The first between segments 6 and 7. 



Alimentary canal. Gizzard in segment 5, vascular swellings 

 in segments 11-13; no true calciferous glands; large intestine 

 commencing in segment 17. 



Circulatory system. Dorsal vessel single, hearts in segments 

 6-12. 



Excretory system. Plectonephric. Peptonephridia present. 



