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PACIFIC SCIENCE, Vol. IV, July, 1950 
Fig. 1. Progressive stages of metamorphosis of the frog from the Palau Islands, X 7. a, Dorsal 
view of the youngest larva (the outer gelatinous egg membrane is omitted) ; b, 2 days later, dorsal view 
(only the innermost egg membrane is drawn); c, 4 days later, ventral view; d, 7 days later (all mem- 
branes are removed from the egg), frontal view; e, same as d, ventral view; f, 10 days later, dorsal 
view. 
( am, Abdominal membrane; bv, blood vessel; e, eye; fl, forelimb; h, heart; hi, hind limb; m, mouth; 
t, tail.) 
