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whilst the expanded uterine parts were crammed to distension with 

 ova. At first I thought there was no opening into the cloaca such 

 was the distension, and that this was the reason for the large number 

 of eggs in the coelom but I succeeded in finding the usual apertures 

 and in passing a bristle from the cloaca into the uterus on either side. 

 From either kidney came the ureter. Both ureters were of the normal 

 female type there being no development of a seminal vesicle. 



The urino-genital organs were removed, fixed, sectioned and 

 examined microscopically. Their histology is interesting. The ovo- 

 testis is seen in transverse section to show the normal structure of 

 the ovary in the dorsal ovarian part, numerous normal eggs being 

 present, but, there are also cavities amongst the ordinary egg con- 



Fig. 2. 



Fig. 3. 



Fig. 1. 



Fig. 1. The ovotestis, fat body, kidney, ureters and dorsal aorta. 



Fig. 2. Crypt of the testis portion containing mature spermatozoa and eosino- 

 philous bodies. 



Fig. 3. Crypt of the testis portion showing developmental stages of spermatozoa 

 and lymphoid tissue. 



taining chambers, and of the same size, which are filled with black 

 pigment, representing perhaps degenerate eggs. The ventral or testis- 

 like portion of the ovo- testis consists of crypts as in the normal male 

 gonad, but it has not a well developed central lumen. Of the crypts 

 of the testis portion some contain mature spermatozoa, others develop- 

 mental stages of spermatozoa. The crypts containing mature spermato- 

 zoa also have centrally masses of peculiar spherical bodies. These 

 bodies lie free in the cavities of the crypts, they are of various sizes, 

 the largest having a diameter about equal to the larger diameter of 

 a red blood corpuscle, they mostly have no nucleus, but there are 

 to be found amongst them a few similar but nucleated ones. Both 

 kinds stain very readily with eosin. The other crypts are lined by 

 masses of cells in various stages in the production of spermatozoa 



