Citations containing new species:

• Sowerby, J. de C., 1840. Trans. Geol. Soc. Lond., (2) 5 (2 ).
• Sowerby, J. de C., 1841. Min. Conch., 7.
• Sowerby, J. de C., and Dixon, F., 1850. Geol. Foss. Tert. Cretac. Sussex