4 University of Michigan 



conducted from vasa efferentia to the genital pore. Immediately 

 back of the genital opening this convoluted tube becomes nar- 

 rowed and straightened and finally connects with the penis which 

 leads to the exterior or ventral surface, just below the opening 

 from the uterus. The striking feature about this species is the 

 fact that the cirrus sac lies between testes and not anterior to 

 them. 



The female reproductive system consists of an ovary, uterus 

 which fills the region in the body between acetabulum and testes, 

 bounded laterally by intestinal coeca, and vitelline glands with 

 connecting ducts. The ovary is about half the size of the cirrus 

 sac and lies between it and the posterior testis. Observing a 

 specimen from ventral side, the ovary is equidistant between 

 cirrus above, right branch of the intestine, and posterior testis. 

 The ovary takes somewhat of an ovoid shape and lies a little to one 

 side of the mid-line. 



In toto mounts the uterus was so filled with eggs that the 

 finer connecting ducts were obscure. The uterus and ovary seem 

 to connect directly. After the uterus has made several convo- 

 lutions in the area between the testes, it runs to the right and for- 

 ward until it reaches the region between acetabulum and anterior 

 testis where it makes two longitudinal loops, which are bounded 

 laterally by intestinal coeca. In mature specimens the folds of 

 the uterus are crowded with eggs and fill all available space between 

 intestinal coeca, anterior testis, and acetabulum. 



Most interesting is the way in which one branch of the uterus 

 extends to the left and downward until it reaches the region of the 

 cirrus sac so that it opens exactly above the opening of the male 

 apparatus. In some mounts this terminal arm of the uterus was 

 smaller and free from eggs, while in others eggs were present the 

 entire length of the channel; the last egg might be lying at the edge 

 of the genital opening. This shows the close proximity of the two 

 genital openings. 



