G. B.  Sowerby, ?Further notes on marine shells of South Africa, with descriptions of new species?, The Journal of Conchology, vol. 6, pp. 147-159, 1889.

G. B.  Sowerby, Appendix to marine shells of South Africa: a catalogue of all the known species with references to figures in various works, descriptions of new species, and figures of such as are new, little known, or hitherto unfigured. London: Sowerby, 1897, p. 42.

G. B.  Sowerby, A catalogue of the shells contained in the collection of the late Earl of Tankerville, arranged according to the Lamarckian conchological system; together with an appendix containing descriptions of many new species. London: E. J. Stirling, 1825, p. vii+92.

G. B.  Sowerby, A catalogue of the shells contained in the collection of the late Earl of Tankerville, arranged according to the Lamarckian conchological system; together with an appendix containing descriptions of many new species. London: E. J. Stirling, 1825, p. vii+92.

G. B.  Sowerby, ?Further notes on marine shells of South Africa, with descriptions of new species?, The Journal of Conchology, vol. 6, pp. 147-159, 1889.

G. B.  Sowerby, Appendix to marine shells of South Africa: a catalogue of all the known species with references to figures in various works, descriptions of new species, and figures of such as are new, little known, or hitherto unfigured. London: Sowerby, 1897, p. 42.