12 Proceedings of the Royal Society of Victoria. 



]9 and 20, and another pair ma}' be present at tlie level of 

 the interval between the two inner rows of setse on eacli 

 side, half on segments 9 and 10. 



Dorsal pores present, the first between segments 4 and ■'). 



Alimentary canal. Gizzard in segnrient 5. No true 

 calciferous glands present, but vascular swellings present 

 in segments 9-12. Large intestine commencing in segment 

 17. 



Circulatory system Dorsal vessel single. Hearts in 

 segments 6-1 2. 



Excretor}^ system. Plectonephric. 



Reproductive system. Testes, in [)airs, in segments 10 and 

 1 1, with rosettes opening into the same segments. 



Prostates flattened and elongate, with a somewhat 

 mammillate surface. Each is leaf-shaped, the single duct 

 running up the centre in the position of a mid-iib. Extend- 

 ing through segments 18-21. 



Sperm sacs, three pairs, one pair on the anterior wall of 

 segments 11 and 12; another on the posterior wall of 

 segment 9. Sac-like in form. 



Ovaries in segment 13, into which the oviducts open. 



Spermathecce, three pairs, in segments 7, 8 and 9. Each 

 consisting of a sac, with a long coiled tubular diverticulum. 



Habitat. Castlemaine (collected by Mr. T. S. Hall). 

 Tallarook, Goulburn Valley (collected by Mr. A. H. S. Lucas.) 



(10) Perichoita dendyi, sp. n. (Figs. 49, 50, 51, 77). Length 

 of spirit specimen 2i inches, breadth about -J 

 inch. Number of segments about IGO. Colour 

 yellowish when alive. 



Prostomium completely dovetailed into the peristomium, 

 the former being distinctly wedge-shaped. 



Clitellum complete, occupying segments 14-16. 



Setee, as far back as segment 19, there ai-e 6 on each side, 

 arranged in pairs ; segment 20 has 8 each side, in pairs, 

 behind this increased to 10 each side, and at the posterior end 

 vary from 7-10. The inner two on each side I'emain regular 

 along the whole length of the body. 



Male pores on slight papillse on segment 18, at the level 

 of the interval between the two inner seta? of each side. 



Oviduct ]wres on segment 14. 



Spermathecal pores, four pairs, between segments 5 and 6, 

 6 and 7, 7 and 8, 8 and 9, at the level of the innermost 

 setae. 



