Lithograph of the shell Strombus Gallus, commonly known as the "Angel's Wing" or "Roostertail Conch", and first described by Carl Linné in 1758. Drawn from the specimen in the collection of William Broderip, and sold to the British Museum in 1837. Scanned from plate 32 in the second edition of Swainson's Exotic conchology, published in London by Henry G. Bohn in 1841.