36 ZOOLOGICAL EESULTS OF THE RUWENZORI EXPEDITION. 



immediately beneath the body-wall, and has pushed the dorsal blood-vessel to the 

 left. The contents were an opaque white granular mass, in which could be detected 

 nothing resembling a spermatophore, though the friable coagulated matter may have 

 been the material out of which a spermatophore was to be constructed. The sperma- 

 thecal sac (text-fig. 6), it should be said, widens out from its duct, which lies to the 

 right side of the gut. I could see no indication of any communication between the 

 spermathecal sac and the cavity of the intestine, such as occurs, for example, in 

 ParasGolex. The narrow duct of the spermathecal sac shows no nacreous glitter, nor 



Text-fia;. 6. 



o.d. 



Spermathecal apparatus of Neumanniella ruiuenzorii. 

 d. Diverticula of spermathecal sac {S.). f. Funnel of oviduct, o.d. Oviducal pore. 

 $ . Spermathecal pore. 



does it ultimately widen out into any structure that maybe termed a Bursa copulatrix. 

 On the contrary, the duct of the spermathecal sac just before its opening on to the 

 exterior suddenly narrows to half its former calibre and becomes more muscular, with 

 transverse and longitudinal fibres. At the point where this narrowing begins, two 

 cseca, one on each side, are given ofi" and slightly curled backwards. These arise 

 therefore from what I have termed the duct of the spermatheca. These caeca are 

 rather longer than the very narrow terminal chamber of the spermatheca, with a 

 diameter half again the width of that chamber; each caecum is about half the 

 diameter of the wider part of the duct of the spermatheca. From the extremity of 

 each csecum arises a short tube with very weak muscular walls ; this becomes a little 

 wider, and at a short distance from the spermathecal csecum contains the oviducal 



