998 NOTES ON AUSTRALIAN EARTHWORMS, 



Cryptodrilus simulans, n.sp. 



Three rather contracted spirit specimens from 82-108 mm. long, 

 4-5 mm. broad ; number of segments about 220. 



Colour when fresh probably pallid with the integument more or 

 less pellucid behind the girdle (spirit specimens usually tinged 

 with brown). Prostomium only partially divides the buccal ring 

 (less than half). Segments mostly tri-annulate after the first three 

 or four. 



Setae of the inner couples closer together than usual, about half 

 as far apart as those of the outer couples, the latter also about half 

 as far apart as the two couples of each side ; hence the outer 

 couples or at least the outer rows of these are more laterally 

 situated than in many species. 



Clitellum : no sign of it in two specimens, just commencing in 

 the third; when complete probably comprising xiv-xvii and part 



of XIII. 



Male pores on two small papillae, a little dorsad of the position 

 of the first seta on each side, on the middle annulus of xviii which 

 presents a ridge-like swelling separated from somewhat similar 

 but less pronounced ridges on xvii and on xix by a depression in 

 each case, the ends of the first and last ridges bending round and 

 fusing with the middle one, their extremities reaching a little 

 dorsad of the first couples of setae ; on the anterior annulus of xviii 

 and of XIX appears to be in each case a pair of pores. Oviduct 

 pores two, in front and ventrad of the innermost setae; sperma- 

 thecal pores two pairs between vii and viii, and viil and ix, 

 nearly opposite but a little dosad of the first setae. 



Nephridiopores not visible. Dorsal pores commence after about 

 X but the first one appears to be rudimentary. 



Alimentary canal : gizzard in v, the mesentery behind it very 

 thin ; only two pairs of calciferous pouches seem to be present, in 

 XIV and xv,but these in the specimen dissected immediately attracted 

 notice, and in one specimen are discernible from the exterior ; 

 larsre intestine commences in xvii. 



