898 



MB. F. E. BEDDARD ON THE 



[Dec. 4, 



the xth and xith segments, which are quite distinct, at least in the 

 case of the former pair, from the sperm-reservoirs. In the xiith 

 segment there are a pair of sperm-sacs, but they are quite small 

 and compact bodies. 



In the xiiith segment there are a pair of still smaller egg-sacs. It 

 may be thought perhaps that I have made an error of a segment, 

 and that the two pairs of small sacs are both egg-sacs and lie, as 

 the two pairs of these sacs sometimes do, in segments xiii., xiv. I 

 believe, however, that this is not the case. 



Anterior end of Amyntas polytheca. X 6. 



The spermiduccd glands are extensive, reaching from segments 

 xvii.-xx. ; they are much lobulated. The duct runs forward as a 

 narrow tube into the xviith segment and then runs back, widening 

 out to the xviiith segment, where it opens directly on to the 

 exterior and not through the intermediary of a terminal sac. 



