A monograph on the fossil Balanidae and Verrucidae of Great Britain.
By Charles Darwin.
- London, Printed for the Palaeontographical Society, 1854.
- 3 p. l., 44, 2 p. illus., II pl. 28 cm.
Each plate preceded by leaf with descriptive letterpress. Added t.-p.: The Palaeontographical society. Bound with his Monograph on the fossil Lepadidae. London, 1851.