Metamorphic variations in the hemoglobins of Bombina variegata (L.)

1. The electrophoretic pattern of the anuran Bombina variegata presents one band only until the end of premetamorphosis. Afterwards three new bands appear which substitute the larval band within 15-18 days of metamorphosis. 2. The gradual change of larval and adult hemoglobin, correlated with the development, has been reported in a diagram. 3. In Bombina variegata the hemoglobin change is total, like in most amphibians, but starts earlier and develops slower than in most other species.