BuL. U. S. B. F., 1908. 



Plate CIII. 



Fig. 4.— Larva a few day<^ after end of critical period. Vitellus has disappeared, 

 abdomen full uf fooil. Shape of fish changed. Twenty-third day. 



Fig, 5, — Detail of pigmentation of abilonien of above figure. 



Fig. 6. — Lar\'a aitvr the critical period (cadavcruus sha])e). 



