260 FRANK E. BEDDARD. 



The spermatothecal pores lie on the boundary line be- 

 tween Segments 8 and 9; in line with the ventral couples 

 of setse. 



The atrial pores are upon Segment 17, corresponding in 

 position to the absent ventral setae of this segment. Each is 

 situated upon an elevation of oval contour^ not fused across the 

 middle line with its fellow. 



There are no genital papillae. 



§ Internal Anatomy. 



My investigations into the internal anatomy of this worm 

 are less complete than they might otherwise have been, owing 

 to the fact that the alimentary canal was full of sand, which 

 greatly damaged the sections and prevented me from satisfac- 

 torily determining certain points. 



As in many other earthworms, a few of the foremost 

 intersegmental septa are greatly thickened, and are attached 

 ventrally along lines which do not correspond with the inter- 

 segmental grooves. There are five of these thickened septa, 

 which lie between Segments 5 — 10. 



The body-cavity is largely occupied by numerous corpus- 

 cles ; they are particularly abundant in the segments after the 

 12th, but I found them as far forwards as the cavity of the 

 prostomium. These cells have a circular contour or are 

 slightly oval ; the outline appears crenate, an appearance 

 which seems to be due to the presence of a peripheral layer of 

 excreted particles, a few of which are a5so scattered through 

 the cell. The nucleus is comparatively large, and always very 

 much more darkly stained than the surrounding protoplasm, 

 which is but faintly tinged by borax carmine. Among the 

 cells were, here and there, aggregations of darkly stained 

 spherules. The existence of numerous ccelomic corpuscles 

 seems to characterise the tropical species of earthworms ; but 

 generally these cells are loaded with granules. 



The nephridia commence in the 6th segment; in Segment 5 

 I found the funnel of this nephridium, but there was no 



