ANATOMY OF PALUDESTRINA 



175 



5. Eeproductive System. 



(1) Female Organs (Text-figs. 8, 9, 10). 



The ovary lies as usual between the liver and columella 

 muscle. It consists of branched tubular follicles. The material 

 employed for this study was all collected and preserved during 

 May and June when apparently the oogonia were approaching 

 maturity, but were not being shed in any number. A few 



Text- FIG. 7. 



Renal aperture and ' blood-gland ' in section, ck, cavity of kidney ; 

 h, blood-gland ; r.o., renal orifice ; s, secretory epithelium. 



were found in the oviduct, and in a small number of cases 

 spermatozoa were found in the receptaculum seminis. 

 It may be therefore considered that, speaking generally, the 

 material examined represented a stage coincident with the 

 beginning of the breeding season. 



A great diversity of cellular elements was found in the ovary. 

 The following types were invariably distinguished (Text-fig. 12) : 



(a) Eipe oogonia distinguished by their large size, large 



