388 



MR. F. E. BEDDARD ON THE 



[Apr. 19. 



Benham and Bergh — I am now convinced that the pair of glands in 

 segment 1 1 represent the posterior pair of testes in Lumbricus, and 

 that the glands in segment 10, which I record for the first time in 

 the present communication, represent the anterior pair of testes in 

 Lumbricus ; it follows, therefore, that the " testes " of my former 

 paper are tiie vesiculae seminales. The glands of segment 12 now 

 remain to be accounted for ; it seems to me that the clue to the 

 natnre of these glands is to be found in Dr. Bergh's paper already 

 referred to. Dr. Bergh describes and figures in Lumbricus a pair of 



Fi2. 2. 



c.p- 



Acanthodrilus dissimilis. Dihsection of genital region ; the oesophagus has been 

 partially removed ; the vesiculoe seminales have been entirely removed 

 from segment 10 and from the left side of segments 11, 12. 



s/>, spermatheoa ; o, vesieulie seminales; i", testes; i*', additional pair of ovaries ; 

 ov, ovaries; od, oviduct; /, vas deferens funnel ; vd, vas deferens; n, ne- 

 phridial aperture ; p, prostate ; sc, sac containing penial setae. 



rudimentary structures in segment 12, which he regards as an ante- 

 rior pair of ovaries which do not arrive in tliat genus at sexual ma- 



