EXPLANATION OF PLATE 1 



Fig. 1. Eana sp. The lighter tadpole was fed upon yolk of egg, the 

 darker one was fed upon liver. From photograph, natural size. 



Fig. 2. Hyla regilla. The lighter tadpole was fed upon yolk of egg, 

 the darker one was fed upon liver. From photograph, natural size. 



Figs. 3-8. Epidermal chromatophores of amphibian larvae. From 

 photographs, magnified about forty-five diameters. 

 Fig. 3. Byla regilla. Tadpole fed on liver. 

 Fig. 4. Syla regilla. Tadpole fed on yolk of egg. 

 Fig. 5. Mana sp. Chromatophores of tail region, tadpole fed on 



liver. 

 Fig. 6. Mana sp. Chromatophores of tail region, tadpole fed on 



yolk of egg. 

 Fig. 7. Buna sp. Chromatophores of body of larva, tadpole fed 



on liver. 

 Fig. 8. Mana sp. Chromatophores of body of larva, tadpole fed 

 on yolk of egg. 



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