MEGASCOLECIDAE 



283 



Prostomium epilobic {,. Clitellum |i3-|i6, complete ventrally. Copulatory 

 papillae absent. Dorsal pores present from intersegment 8/9 backwards, except in the 

 clitellar region where pores are apparently absent. Nephridial pores on the anterior 



Fig- 3- 

 Microscolex georgianus (Mich.), a. Spermatheca, anterior view, x 40. 



Yagamia papillosus (Bedd.). b. Left spermatheca, anterior view; the diverticulum is spirally coiled in a 

 clockwise direction, x 40. 



Yagansia gracilis (Bedd.). c. Right spermatheca, anterior view, x 40. d. The same spermatheca, posterior 

 view, X 40. 



borders of the segments, in or very slightly below setal line c. Female pores on segment 

 14, anterior and internal to the ventral setae {ad). Intersetal ratios: aa : ab : be : cd:dd on 

 segment 10 about 2 : 1:2: i\ \ s,, dd = ca. \ii\ 2X posterior end, about i^ : i : i| : i : i|, 

 dd= ca. \ii. 



3-3 



