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Pain, T. (1949). On the types of three species of Pomacea described by G. B. Sowerby III. Proceedings of the Malacological Society of London. 28 (1): 39–40.
Pain, T. (1949). On the types of three species of Pomacea described by G. B. Sowerby III. Proceedings of the Malacological Society of London. 28 (1): 39–40.