| Date Note | Earliest possible drawing date, date of publication |
| Description | Small watercolour study of the skeleton of a complete specimen of the fossil fish Pygaeus Coleanus Agassiz, by Joseph Dinkel, [1834-1839]. Found in Monte Bolca, from the collection of William Willoughby Cole, 3rd Earl of Enniskillen. Not published.
Note: originally titled 'Pygaeus nov. spec. Agassiz', but was revised in the published form. |
| Administrative History | Collected/drawn as part of the research for Louis Agassiz's 'Recherches sur les Poissons Fossiles' (1833-1843/1844). Duplicate of a drawing which was published. |