| Date Note | Similar captions to drawings commissioned for Egerton (1858) |
| Administrative History | The drawings have similar annotations to those created for inclusion in Egerton, P M G, “On Chondrosteus, an Extinct Genus of the Sturionidae, Found in the Lias Formation at Lyme Regis”, ‘Philosophical Transactions of the Royal Society of London’, vol 148 (1858). |