Further Descriptions of Australian Earthworms. 67 



(3). Digastep gayndahensis, sp. n. (Figs. 106, 107, 108.) 

 Spirit specimens 2^ inches long, less than ^ inch broad ; 

 number of segments about 102. 



Prostomium about one-half dovetailed into the peristomium. 



Clitellum extending over segments 14-18 and the posterior 

 part of 13 ; accessory copulatory structures ; median, ventral, 

 glandular patches between segments 19 and 20, 20 and 21, 21 

 and 22. 



Setae difi&cult to distinguish behind the clitellum ; the two of 

 each pair close together in front of the clitellum. 



Male pores on a ventral ridge at the level of the interval 

 between the ventral pair of setae. 



Oviduct pores on segment 14. 



Spermathecal pores at the level of the ventral setae between 

 segments 7 and 8, 8 and 9. 



Dorsal pores, the most anterior one which can be seen lies 

 between the 37th and 38th segment fi'om the posterior end. 



Alimentary canal. Two gizzards in segments 7 and 8, in 

 segments 5 and 6 the canal is coiled and thin walled ; no vascu- 

 lar swellings or calciferous glands ; large intestine, commencing 

 in segment 17. 



Circulatory system. Dorsal vessel single, hearts in segments 

 9-13. 



Excretory system. Plectonephric. 



Reproductive system. Two pairs of testes in segments 10 and 

 11, into which the ciliated rosettes open. 



Spermiducal glands, small, lobate in segment 18. 



Sperm sacs, racemose, attached to the anterior walls of 

 segments 11 and 12. 



Ovaries in segment 13, into which the oviducts open. 



Spermathecae, two pairs, in segments 8 and 9, each consist- 

 ing of a short sac with a small spherical diverticulum. 



Habitat. Gayndah, Queensland 



