<jats:p>The dermal glandular extracts of the tibial (calf) glands of the Australian banjo frogs Limnodynastes interioris, Limnodynastes dumerilii and Limnodynastes terraereginae each contain a different peptide, which we have named dynastin 1, 2 and 3 respectively. The determination of the sequences of these peptides is detailed.