194 MR. F. E. BEDDARD ON [June 17, 



exterior. As to the region which opens into the spermathecal sac, 

 it seems to be an tinnecessaiy periphrasis to call it, as Dr. 

 Michaelsen does, a " Yerbinclungsschlauch." It is, to my mind, 

 unquestionably the oviduct and corresponds exactly to that 

 portion of the oviduct which in other Eudrilids (e. g. in Stuhl- 

 mannia ^) opens directly into the spermathecal sac. Its cells are 

 cubical and ciliated, and totally different fi'om the long thin npn- 

 ciliated cells which line the spermathecal sac. Furthermoi'e, there is 

 no transition between the two kinds of cells that I could discover ; 

 and finally the oviduct opens by a slightly dilated mouth fi-eely 

 into the inteiior of the sac. This is, I take it, the oviducal 

 funnel. I am inclined from these additional facts to add to the 

 definition of the Eudrilida? that the oviduct is characterized by 

 the possession of two funnels, one of which opens into the I'ecepta- 

 culum ovoi'um and the other into the spei'mathecal sac. The 

 Samenkammerchen are, as Michaelsen their discoA'erer has pointed 

 out, diverticula of the oviduct packed with sj^ermatozoa, arranged 

 in a regular fashion. I am disposed to considei' these diverticula 

 as corresponding to the single diverticulum upon the oviduct 

 which is to be found in Hyperiodrilus^ Heliodrilus, and Alvania. 

 Spermatozoa have not, however, so far been found to exist in the 

 latter. I found spermatophores in the spermathecre, the descrip- 

 tion of which I postpone for the present. 



(2) POLYTOREUTUS MONTIS-KENY^, n. Sp. 



This species has a considerable similai^ty to the last, which is 

 chiefly due to the fact that the genital ai-ea is suii-ounded by a 

 raised ridge not unlike that distinctive of PolytoreuUis kenyaensis. 

 The two species are neveitheless perfectly' distinct. There are 

 both external and internal differences of sti-ucture. Polytoreutus 

 'montis-kenycc. is, in the first place, a smaller and more slender 

 species than its nearest ally. It has a length of 68 mm. and a 

 diameter of 4 mm. In its colour (in spirit), form of prostomium, 

 arrangement of setas, position of nephridiopores, the present species 

 appears to agree exactly with P. henyaensis. The cliteUum is 

 also much the same; it always occupies segments xiv.-xvii., and 

 occasionally strays a little way on to segments xiii. and xviii. 

 Externally this species is to be distinguished from P. kenyaensis 

 by the position of the male pore and by the peiigenital area. 

 The male pore lies intersegmentally between xvii./xviii. This 

 fact could be positively ascertained only upon immature speci- 

 mens, of which there are a good many. In the fully adult woi-m, 

 the orifice in question is borne upon a smooth conical pi'ojecting 

 papilla, more conspicuous in some individuals than in otheis, but 

 always obvious. The actual orifice when particularly conspicuous 

 is circular in outline. This papilla shelves down into the peri- 

 genital lodges, which in this species do not extend further 



1 Beddard, P. Z. S. 1901, vol. i. p. 354, text-fig. 87, o.d. 



