- Toad (Froschauer 1554). Part of Set of illustrations to Gessner's Historia animalium (Froschauer)
- Toad (De ranis rubeis tum palustribus tum terrestribus). In Conrad Gessner, Conradi Gesneri medici Tigurini historiae animalium liber II. de quadrupedibus oviparis ... item oviparorum quorundam appendix, Zürich: Christoph Froschauer (printer), 1554 (Zürich, ZB), p. 59 ◼
- Toad (Bufo). In Conrad Gessner, Icones Animalivm Qvadrvpedvm Viviparorvm Et Oviparorvm ..., Zürich: Christoph Froschauer (printer), 1560 (Zürich, ETH-Bibliothek), p. 120 ◼
- Toad (Bufo). In Conrad Gessner, Icones Animalivm Qvadrvpedvm Viviparorvm Et Oviparorvm ..., Heidelberg: Andreas Cambier (printer), Johann Lancelot (printer), 1606 (London, BL), p. 120