Drawings, pelvic organs and ova from the Ornithorhynchus paradoxus by R [Richard] Owen Plate 25, figures 1-8 showing the pelvic organs, including the ovaries, kidneys, bladder, and rectum, as well as the ova of the Ornithorhynchus paradoxus [platypus]. Inscribed with publication and plate details. Figures drawn separately (figures 3-7 drawn together) and pasted onto a single backing sheet. Signed in ink bottom left 'R. Owen. delt'. The manuscript for this paper is wanting. Subject: Zoology Published in Philosophical Transactions as part of paper titled 'On the ova of the Ornithorhynchus paradoxus' by Richard Owen. Received by the Royal Society on 15 May 1834. Read 19 June 1834. [1834]