Drawing/wood engraving of a duckbill platypus.
Date published 1891
Source Johann David Wyss (translated into English by the family of William Henry Giles Kingston), The Swiss Family Robinson, George Routledge and Sons, Limited, 1891, p. 241.
Author unknown artist
Source: https://commons.wikimedia.org/wiki/File:SFR_b%2Bw_-_duckbill_platypus.jpg

The platypus or duck-billed platypus (Ornithorhynchus anatinus) is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania. It is one of the extant species of monotremes, the only mammals that lay eggs instead of giving birth.