476 



MRS. O. A. MERRITT HAWKES ON THE 



[May 28, 



fig. 139, R.Ov.) has acquired a median position, the left oviducal 

 opening (L.Ov.) lying cephalad to it. Garman also found that one 

 oviduct was much enlarged but does not mention which, but from 

 his drawing (1. pi. xix, fig. 2) it appears to have been the right. 

 Giinther does not mention the female reproductive organs. 



Text-fig. 139. 



A. 



B. 



Diagrammatic figures of (A) male and (B) female cloaca of Chlamydoselachus. 

 Seference Letters. 



A,P. Closed abdominal pores. 

 B. So-called " bladder " (urinary sinus). 

 L.Ov. Left oviducal opening. 

 K. Rectum. 

 R.A.P. Functional riglit abdominal pore. 

 R.Gr. Opening of rectal gland into rectum. 

 R.Ov. Right oviducal opening. 

 R.S. Seminal vesicle. 

 Ug. Urinogenital opening. 

 Ur. Opening of ureter into urinary sinus (B). 

 U.S. Urinary sinus of female. 

 U.S'. Openings of urinary sinuses into the cloaca. 

 V.D. Vas deferens. 



Transverse sections through the thickened areas of the uterus 

 show that the lining membrane is much folded and is entirely 

 covered by a columnar epithelium, the cells of which have a 

 distinctly granular appearance. It is impossible to state definitely 



