438 



DR. E. E. STIRLING ON THE 



Fig. 2. 



[Nov. 5, 



-Tic. 



r.o. 



Female organs of Macrcypus major (J natural size). 



The organs have been laid open by a dorsal median incision. The two lateral 

 canals, l.l.c, r.l.c, are seen enormously distended in their upper parts. The 

 upper part of the median canal, in.c, is also much distended. The large 

 openings between this and the lateral canals are not seen ; l.o points to 

 the OS of the left uterus, r.o to the right os ; r.ov, l.ov, right and left 

 ovaries. The threads, a^, a.^, pull asunder the walls of the lower part of 

 the median canal, in which can be seen the ridge spoken of in the text, X, 

 opening between the median canal and the urogenital passage, it.g.c ; «, 

 orifice of urethra, into which a bristle is passed and just above this is the 

 keel-like process, /, described in the text and represented on a larger scale 

 in fig. 3 ; Y, points to the larger and smaller culs-de-sac described in the 

 text ; rj, r^, the two lateral halves of the rectum completely cut across 

 longitudinally in laying open the median canal from behind ; b, c, bristles 

 passed into the openings of the right and left lateral canals into the 

 urogenit;vl passage. 



