| Date Note | Reference to Lady Marian Alford, (née Compton) who married Viscount Alford in 1841. |
| Description | Watercolour sketch of Pygaeus N S Coleanus [Pygaeus coleanus Agassiz], possibly by Lady Marian Alford, [after 1841?]. From Monte Bolca.
Annotated "Lady Marion Alford cab[inet] Egerton cab[inet] Lord Northampton", and that it is a counterpart of the plate in Recherches, vol 4, Tab 44, fig 5, the drawing of which can be found at LDGSL/616/2/46/8. |