URINO-GENITAL ORGANS 



49 



Fig. 7. — Diagrammatic representation of .modifications of the urino-genital ducts. 

 1, 2, Male and female Newt ; 3, a tubule of the kidney ; 4, male Rana ; 5, 

 male iJ?(/b/ 6, male iJom&ma^o/* / T , Tii2i\& Discoglossus ; ^,rt\a\&Alytes. a, Artery 

 entering, and producing a coil in, the Malpighian body, il ; B, Bidder's organ ; 

 ef.sx, efferent segmental canal; F.B, fat-body; gl, glomerulus; K, Iddney ; l.cr, 

 longitudinal collecting canal ; J/, Malpighian body ; Md, Miillerian duct ; N, 

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

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



VOL. VIII E 



