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, 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.