A. S.  Kennard, Salisbury, A. E., and Woodward, B. B., ?The types of Lamarck's genera of shells as selected by J. G. Children in 1823?, Smithsonian Miscellaneous Collections, vol. 82, pp. 1-40, 1931.

U. S.  Grant, IV and Gale, H. Rodney, ?Catalogue of the marine Pliocene and Pleistocene Mollusca of California and adjacent regions?, Memoirs of the San Diego Society of Natural History, vol. 1, pp. 1-1036, 1931.

P.  Bartsch, ?A new pearl oyster from the Hawaiian Islands?, Proceedings of the United States National Museum, vol. 79, pp. 1-2, 1931.

P.  Bartsch, ?A new pearl oyster from the Hawaiian Islands?, Proceedings of the United States National Museum, vol. 79, pp. 1-2, 1931.

A. S.  Kennard, Salisbury, A. E., and Woodward, B. B., ?The types of Lamarck's genera of shells as selected by J. G. Children in 1823?, Smithsonian Miscellaneous Collections, vol. 82, pp. 1-40, 1931.