See platypus.
1825. Barron Field, `First Fruits of Australian Poetry,'in `Geographical Memoirs of New South Wales,' p. 496:
«When sooty swans are once more rare,
And duck-moles the museum's care.»
[Appendix : «Water or duck-mole.» ]
1875. Schmidt, `Descent and Darwinism,' p. 237:
«The Ornithorhyncus or duck-mole of Tasmania.»