1892.] 



AaUATlC OLIGOCHJETOUS WORMS. 



Fig. 1. 



.357 



' rTTiitf 



'^e:^ 



K^ 







10 



31 



7 



-— i 





— ,\— t:::^ ^^ — '/T ^ 



ST' 



XT 



ST 





\ 



r 



j*--^ ^ 



/ 





Greuital segments of Kerria haloj^Jiila, as seen on a dissection. 



Cr, Gizzard ; Ca, calciferous glands ; Sp, spermatotheca ; T, testis ; Bp.d, sperm- 

 ducts ; 0, ovary ; Od, oviduct ; At, atrium. 



Segments of clitellum indicated in Boman numerals. 



