Sowerby, G. B. I; Sowerby, G. B. II. (1832-1841). The conchological illustrations or, Coloured figures of all the hitherto unfigured recent shells. London, privately published.
CLEMAM P2884 Issued in 200 parts, for detail of dates see Shaw H.O.N. 1909, on the dates of Sowerby's "Conchological illustrations", from the copy preserved in the Radcliffe Library, Oxford. Proceedings of the Malacological Society of London, 8: 333-340, and Reynell A. 1910, ibid., 9: 212-213. Also, see Petit (2009).