190 



ME. F. E. BEDDAKD ON THE STRUCTURE 



[Mar. 5, 



of P. Jcilindinensis, that the area bearing the reproductive apertures 

 is continued as a glandular swelling over the next four segments. 

 The divisions between these segments, except that between the last 

 two, i.e. xxii./xxiii., are obliterated over this area, which is seen on a 

 lateral view of the body to protrude somewhat. 



Text-fig. 51. 



Text-fig. 52. 



-:f 



Text-fig. 51. — Polyioreutiis kilindinensis. Head-encI, x 3. 

 cJ, male pore; §, female pore; P, papilla. 



Text-fig. 52. — Folytoreutus finni. Head-end, X 5. 

 (Letters as in text-fig. 50.) 



Polytoreutus gregoriamis has a similar " Pubertatspolster," as 

 Michaelsen has termed this structure. But in this species it is 

 much more extensive. It presents, however, the same character 

 of a swollen glandular eminence, which is seen on a lateral view 



