Fiu'ther Descriptions of Aihstralian Earthivorms. 53 



Circulatory system. Single dorsal vessel ; hearts in segments 

 7-12. 



Excretory system. Meganephric ; the nephridiopores at the 

 level of the interval between the fourth and fifth seta from the 

 ventral surface. 



Reproductive .system. Two pairs of testes, in segments 10 and 

 11, into which the ciliated rosettes open. 



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



Sperm sacs, 2 pairs of lobate ones attached to the anterior 

 wall of segments 12 and 13 ; one pair of racemose ones attached 

 to the posterior wall of segment 13. 



Ovaries in segment 13, into which the oviducts open. 



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

 swollen sac and short diverticulum. 



Habitat. Fern Tree Oully, Victoria. 



(2). Diporochaeta mediocincta, sp. n. (Figs. 64, 65, QQ). 

 Spirit specimens 2^ iilches long. 



Prostomium slightly dovetailed into peristomium ; a distinct 

 median groove both dorsally and ventrally on the peristomium. 



Clitellum distinct, extending over segments 14-16. Accessory 

 copulatory structures ; a pair of glandular patches ventrally at 

 the level of the second, third, and fourth setae on each side 

 ventrally between seginents 17 and 18 and another pair between 

 segments 18 and 19. 



Setae, 14-16 on each side in the segments in front of the 

 clitellum ; 20-24 on each side behind the clitellum ; dorsal and 

 ventral break distinct. 



Male pores on segment 18 on papillae at the level of the 

 interval between the two ventral setae on each side. 



Oviduct pores on segment 14. 



Spermathecal pores, 4 pairs, at the level of the interval between 

 the two ventral setae on each side between segments 5 and 6, 6 

 and 7, 7 and 8, 8 and 9. 



Dorsal pores, the first between segments 5 and 6. 



Alimentary canal. Gizzard in segment 5 ; vascular swellings 

 in segments 12-16 ; no true calciferous glands ; large intestine in 

 segment 20. 



