Newton, R.B.; Harris, G.F. (1894). Descriptions of some new or little known shells of pulmonate Mollusca from the Oligocene and Eocene formations of England. Proceedings of the Malacological Society of London. 1: 70-77.
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Newton, R.B.; Harris, G.F.
1894
Descriptions of some new or little known shells of pulmonate Mollusca from the Oligocene and Eocene formations of England
Proceedings of the Malacological Society of London