Klangspektrographische Untersuchung der Lautäusserung beim Krallenfrosch,Xenopus laevis

Summary Three different calls of the clawed toadXenopus laevis are described and their sound spectrograms are presented. The male and female have one characteristic call each, which is heard during clasping after stimulating the mating behaviour with chorionic gonadotropin. A second call of the male is heard without hormone treatment, often after feeding or change of water.