Übertragung von Verhaltensweisen durch Transplantation von Anlagen neuroanatomischer Strukturen bei Amphibienlarven: I. Xenoplastischer Austausch von Nachhirnanlagen zwischen Xenopus laevis und Hymenochirus boettgeri (Amphibia,Anura)1

By transplantation of parts of the neural plate (later medulla oblongata) from Xenopus laevis (Daud.) to Hymenochirus boettgeri (Torn.) larval chimaeras were obtained, which showed donorlike rhythmical movements of the mouth and pharyngeal region, movements which the host species lacks. Nevertheless, some of these tadpoles were still able to catch small prey in a reaction which is typical for the host and lacking in the donor.