[Investigations on the development of the vomerine bar inSalamandra salamandra (L.)]

The development of the vomerine bar inSalamandra salamandra was studied by amputation and transplantation procedures before and during metamorphosis. The bar of the vomer arises from the connective tissue near the caudal margin of the larval vomer. The larval vomer does not regenerate after amputation. A short caudal part of its dental lamina is sufficient for the outgrowing of the complete dental lamina of the vomerine bar. If the tip of the outgrowing vomerine bar is removed, the bar will remain incomplete, which procedure has no influence on the development of the definitive vomer. The material of the developing vomerine bar transplanted to the subepithelial connective tissue of the skin remains intact, but does not continue to grow. Fragments of the skin transplanted to the region from which the bar of the vomer arises prevent the development of the bar.