Pee ; 
ice aera’ ci i 4 
A i 1 2IF j ; iy ; ak 
Ait , ; ete At 
- ‘ Ree an My f ‘y 
Yh ea TO ABs ay 
550 esac ( 
; t 
sf 
. 
~~ 
x 
EXPLANATION OF PLATE XXXIV. 
Fic. 12. Larva 18m long, showing the primary pores in various stages of forma- _ 
tion. = X 30. : 
Fig. 13. Larva 31™™ long, showing the primary pores of the head. 30:00 
