A Back's grayling and a cross-section of its gill. Coloured etching by J. Curtis.
- Curtis, John, 1791-1862.
- Date:
- 1823
- Reference:
- 42014i
Licence: Public Domain Mark
Credit: A Back's grayling and a cross-section of its gill. Coloured etching by J. Curtis. Wellcome Collection. Source: Wellcome Collection.