398 NOTES ON AUSTRALIAN EARTHWORMS, 



the mesentery between xii and xili, not racemose and smaller than 

 the testes, of which from their situation they look at first sight 

 like a third pair. 



Hah. — Lofty Ranges near Adelaide, S.A. 



For specimens of this very distinct species, the first recorded 

 from South Australia, I am indebted to Professor Rennie, and to 

 Dr. Stirling from whose garden they came. 



PERICHiETA RaYMGNDIANA, n. Sp. 



Two spirit specimens comprising 103 and 135 segments respec- 

 tively, were 19 and 26 cm. long, and 8 and 9 mm. broad respec- 

 tively. When alive evidently of a very dark red above, lighter 

 below. The prostomium all but divides the buccal ring, is 

 superiorly marked with a longitudinal median groove, and with a 

 transverse one at a distance of about \ of the width of the buccal 

 ring from its anterior margin ; the buccal ring not grooved 

 inferiorly in the median line. 



Clitellum well developed in both specimens, the body much 

 constricted in this region ; comprises nearly five segments, xiii to 

 XVII, in one specimen not taking in the anterior portion of xiii and 

 the posterior portion of xvii, but in the other except that their 

 ventral portions were less modified both segments may be said to 

 be included. 



Male pores on small papillse on xviii, corresponding with the 

 interval between the first and second setae on each side. Dorsad 

 of, but contiguous and at right angles to each papilla is a ridge- 

 like eminence running nearly across the breadth of the segment, 

 but no pores are visible on it. There are accessory copulatory 

 structures on the ventral portion of xvii and xviii, consisting of 

 ellipsoidal thickenings each with an obscurely-indicated pair of 

 pores ; the ventral interval devoid of setae in some of the segments 

 in front of the girdle is also thickened. The two ovarial 

 apertures are close together on an ellipsoidal area on xiv. The 



