Preliminary Notes on Tasnianian Earthivonns. 35 



Nephridiopores not discernible. 



Alimentary Canal. Gizzard in segment 5. There are vascular 

 swellings on the oesophagus in segments 9-13, that in segment 

 13 being especially strongly developed, but it is not nipped off 

 like a true calciferous gland. Large intestine commencing in 

 segment 18. 



Blood vascular system. Single dorsal blood vessel with hearts, 

 the last of which is in segment 12. Supra-intestinal vessel in 

 segments 8-12. 



Excretory system. Plectonephric with no large nephridia. 



Reproductive system. Testes, two pairs in segments 10 and 11, 

 ciliated rosettes in the same segments. 



Prostates flattened, racemose in segment 18. 



Sperm sacs, saccular and attached to the anterior wall of 

 .segment 12. 



Ovaries attached to the anterior wall of segment 13, oviducts 

 open into the same segment. 



Spermatheca3, two pairs, in segments 8 and 9. Diverticulum 

 not quite half as long as the sac, both being simple in outline. 



Habitat. Table Cape, Tasmania, under logs. 



(2). C. polynephricus (Figs. 4, 5, 6). Length in spirit 5-6 inches. 

 One quarter inch broad. 



Prostoniium about one half dovetailed into the peristomium. 

 Clitellum distinct, and when fully formed complete, occupying 

 segments 13-17. When not fully formed is incomplete ventrally, 

 and somewhat saddle-shaped. Tumid. 



Setje, four couples regularly arranged. The two inner ones on 

 each side near together, the two outer ones widely apart, the 

 interval between them being twice as great as that which 

 separates the two most dorsal ones. The dorsal and ventral 

 intervals, and that between the second and third sette of each 

 side are about equal. 



Male pores on segment 18 between the level of the two inner 

 setaj on each side. 



Oviduct pores on segment 14 ventral of, and anterior to, the 

 level of the innermost seta3. 



Spermathecal pores, two in number, on the anterior faces of 

 segments 8 and 9, just dorsal to the level of the innermost setae. 

 On white elliptical patches. d2 



