GENITAL ORGANS 



475 



persist in female Reptiles, and these undergo fatty degeneration. 

 They are arranged in a single asymmetrical row on either side, 



Ot- , 



~..0t 



B 



Od 1 



FIG. 357. FEMALE URINOGENITAL APPARATUS OF Lacerta muralis. 



B, urinary bladder ; B 1 , neck of the bladder (cut open) ; N, kidneys ; Od, oviducts, 

 which open into the cloaca at Od 1 ; Ot, abdominal openings of oviducts ; 

 Ov, ovaries ; R, rectum ; R l , opening of rectum into the cloaca (Cl) ; Ur l , 

 apertures of the ureters into the cloaca ; t, remains of mesonephros. 



between the oviduct and vertebral column. The vestiges of the 

 Wolffian duct are more marked in female Snakes, Chelonians, and 

 in Geckos than in the majority of Lizards. 



