URINO-GENITAL ORGANS 



49 



M d. 



Fig. /.—Diagrammatic representation of modifications of the uriuo- genital ducts. 

 ' f' .rt T ^^""^^^ ^®'^*^' ^' ^ *^^"'*^ of tl^e kidney; 4, male Rana ; 5, 

 maleJ^u/o; 6, male Bombinator ; 7, male Dismglossus ; 8, male ^^y^es. a, Arterv 

 enterin^and producing a coil in, the Malpighian body, M ; B, Bidder's organ- 

 "/.sx efferent segmental canal ; F.B, fat-body ; gl, glomerulus ; K, kidney ; l.c.c 

 longitudinal collecting canal ; M, Malpighian body ; Md, Miillerian duct • A- 

 nephrostome ; 0, ovary ; Ov, oviduct ; s.d, segmental duct ; T, testis ; Ur ureter • 

 I .d, vas deferens ; V.s, vesicula seminalis. ' 



VOL. VIII J, 



