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Winckworth, R. & Tomlin, J. R. le B. (1933). Recent species of the genus Tonna (= Dolium). Proceedings of the Malacological Society of London. 20(4): 206-213.
Winckworth, R. & Tomlin, J. R. le B. (1933). Recent species of the genus Tonna (= Dolium). Proceedings of the Malacological Society of London. 20(4): 206-213.
