Preliminary Notes on Tasinaiiian EartJnvorms. 45 



Alimentary canal. Gizzard well mai-keil, but there are no 

 distinct septa in front of that bounding segment 8 anteriorly. 

 No true calciferous glands, but vascular swellings are present in 

 segments 13-15. Large intestine commencing on segment 17. 



Circulatory system. Single dorsal vessel. No continuous 

 supra-intestinal. Hearts in segments 7-12. 



Excretory system. Three nephridial tufts on each side of the 

 body — resembling in this respect C. fastignfiis, and C. dubiiis. 



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

 the ciliated rosettes opening into the same segment. 



Prostiites small, flattened, racemose, in segment 18. 



Sperm sacs, racemose, in segments 9 and 12. 



Ovaries in segment 13 into which the oviducts also open. 



Spermathec?e, three pairs in segments 7, 8 and 9. The diverti- 

 culum in the form of a group of little finger-like processes, the 

 sac long and irregular in outlines. 



Habitat. King River Valley, Tasmania. 



(b) Meoascolidks, McCoy. 



(1). Afegasco/ides si/iisoni (Figs. 31, 32, 33). Length in spirits 

 If inches, ^ inch broad. 



Prostomium very slightly dovetailed into the peristomium. 



Clitellum complete including when fully grown segments 

 13-18. 



Sette in four couples. Those of the two inner couples consider- 

 ably nearer together than those of the outer. The former are 

 regularly arranged all the whole length, the latter become 

 irregular about half-way down the body, though here and there 

 an odd one may be irregular immediately behind the clitellum. 



Male pores not very clearly marked on slight papillae on 

 segment 18 at the level of the innermost seta of each side. 



Oviduct pores on segment 14. 



Spermathecal pores, two pairs at the level of the innermost 

 sette between segments 7 and 8, 8 and 9. 



Accessory copulatory structures. Two pairs of white elliptical 

 patches at the level of the interval between the two inner setaj 

 between segments 19 and 20, 20 and 21. 



Dorsal pores present, the first between segments 4 and 5 (?). 



