34 



begins 1,43; foregut ends 3,25. 



The kidney on the left side. 



Glomus begins 3,26. 



( 3,36 — 4,2 Traces of pronephric duct open to the coeloni, — 

 ^^^1 evidently a nephrostome. 



(4,6 Duct has narrow connection with the coelom at 



^^^^ ( 4,6 and 4,15. 



IX 4,26 Tubule with nephrostome opening to coelom. 



X 4,32 — 4,39 Tubule with a coelomic and nephrotomic opening. 

 Pronephric duct fuses with gut at 8,33. 

 See Plate 2 Figs. 24, 25, 26. 



The kidney on the right side. 

 Glomus begins 3,23. 

 Y TT ( 3,34—3,36 — nephrostome. 

 f 3,39 —4,2 — nephrostome. 

 4,6 — small nephrostome. 



^^^^ |4,10— 4,11 — tubule with nephrostome; opening into duct in 

 4,13. 

 ^ ( 4,21—4,26 — tubule (not fused with duct) having nephrotome 

 ^-'^ I opening at 4,21 and coelomic opening at 4,26. 



