- Hippopotamus after Hadrian's coin (Chaudière; Estienne). Part of Set for Belon's De aquatilibus
- Hippopotamus after Hadrian's coin. In Pierre Belon, L'histoire naturelle des Estranges Poissons Marins ..., Paris: Regnault Chaudière (printer), 1551 (Cambridge, MA, Harvard University, Museum of Comparative Zoology, Ernst Mayr Library), fol. 51 ◼
- Hippopotamus after Hadrian's coin. In Pierre Belon, Petri Bellonii Cenomani De aquatilibus Libri duo ..., Paris: Charles Estienne (printer), 1553 (Cambridge, MA, Harvard University, Museum of Comparative Zoology, Ernst Mayr Library), p. 23 ◼