250 



CHILD. 



shallow, but reaching the edge, and the dorsal furrow curving 

 anteriorly and ending on the surface. The uterus is drawn in 

 this case, and it is seen that the uteri of the two segments are 

 continuous at the left, where the separation of the segments is 

 incomplete. This is the only case of this kind figured, but 

 continuity of the uterus is common in cases of partial division. 



Regarding the other genital organs little can be said, as they 

 are far advanced in degeneration. All appear to have been normal 

 except at the left of b, where the pore and vitellarium are still 

 visible, but no traces of ducts appear, and only a few cells in the 

 ovarian region. A more or less rudimentary condition of these 

 organs might be expected, for this portion of the segment is of 

 less than normal length and dorsally is not marked off from 

 either of the segments adjoining. 



HULL ZOOLOGICAL LABORATORY, 



UNIVERSITY OF CHICAGO, 



April, 1900. 



