REPRODUCTION 



97 



SPINAL CORD 



SPINAL 

 GANGLION 



NEPHROSTOME 



GLOMERULUS j 

 POSTCARDINAL VEIN 



,^- ' PERITONEUM 

 MESENTERY PRONEPHRIC TUBULES 



I MESONEPHRIC TUBULES 



PRIMITIVE DUCT 



Fig. 70. — Stereogram of the developing pronephros and mesonephros. (After Kingsley 



modified.) 



MESONEPHRIC TUBULE 



MYOTOME 

 DERMATOME 



MESONEPHRIC TUBULE^ 

 hJEURAL TUBE \ 



fHORDA /; 



AORTA 



GLOMERULUS NEPHROSTOME I | GENITALRIDGE | PRIMITIVE DUCT 



PERITONEUM POSTCARDINAL VEIN MESENTERY COELOM 



Fig. 7 1 . — Stereogram of the developing mesonephros at a stage later than that of Fig. 70. 

 (After Kingsley modified.) 



