34 Proceedings of the Royal Society of Victoria. 



Habitat. Near to the Ebeneezer Mission Station, Mallee 

 District, Victoria. Found in very moist earth on flats close to 

 the River Wimmera. The body is very transparent, the neph- 

 ridia and blood-vessels being visible through the skin. The flats 

 on which the worm was found are liable to be flooded at rainy 

 seasons but are at other times perfectly dry. 



(2). Megascolides steeli, (Figs. 10, 11, 12). Spirit speci- 

 mens 5 inches long, f inch broad. Number of segments 

 385. 



Prostomium completely dovetailed into the peristomium, 

 marked by a median groove. 



Clitellum well developed, extending over segments 13-18 : 

 incomplete ventrally on segments 17 and 18. Accessory copula- 

 tory structures ; an oval patch on each side of the median ventral 

 line at the level of the lower pair of setae between segments 17 

 and 18 and another slightly larger one between segments 18 and 

 19. 



Setae regularly arranged. The two of each outer p;iii- further 

 apart than those of the ventral pair and about half-way up the 

 side of the segment. 



Male pores on segment 18, on a papilla at the level of the 

 interval between the setae of the ventral pair. 



Oviduct pores on segment 14. 



Spermathecal pores two, intersegmental, at the level of the 

 ventralmost setae on each side, between segments 7 and 8, 8 and 

 9. 



Dorsal pores present, the first between segments 14 and 15. 



Alimentary canal. Gizzai'd in segment 5. Vascular swellings 

 in segments 12-15. Large intestine commencing in segment 18. 



Blood vascular system. Dorsal vessel, together with a supra- 

 intestinal vessel, as far back as segment 12, in which it gives ofl" 

 in the hinder part of the segment one branch to the dorsal 

 vessel and one to the heart. Hearts in segments 8-12. 



Excretory system, meganephric. Peptonephridia well de- 

 veloped. 



Reproductive system. One pair of testes in segment 11. 

 ciliated rosettes opening in the same segment. 



