Figure I4 from: Oliver PG, Morgenroth H, Salvador A (2017) Type specimens of Mollusca described by Col. George Montagu in the Royal Albert Memorial Museum & Art Gallery, Exeter and The Natural History Museum, London. Zoosystematics and Evolution 93(2): 363-412. https://doi.org/10.3897/zse.93.13073

Figure I4 - Part of a letter from Laskey to Montagu listing the shells in Laskey's possession from lot 2487 of the Duchess of Portland collection. By permission of the Linnean Society of London, Archive MS213.