Dorsai membrain 







Dorsal membrane 



Spinal cord. 



Notochord, 



Aorta, . 

 Wolffian body 



Wolffian ducts 



wpdn 



Rectum . 



Pelvic fin 

 H oxidrns avil 

 A 



. Spinal cord 



K)> Dorsal membrane 

 ^- Aorta 





n ducts (right 

 and 



ni ir, 3int,i sneq \o g 

 -rnsm Ifisiob sriT /nugft 

 won STB 8 boe A 10 



.balino 

 Muscle segment 



Spinal cord 



Notochord 



Caudal vein 

 Hladder . 

 Rectum 

 Ventral membrane 





IcaioU 



biodaoJoU 



(sliaoqmoo 



(9Q<jnioa> t 



Aorta 



f lo asnEidm-sm I 

 ' 





I IV 



J. F. G. 



I Vi 



