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Amsden, Thomas W. Some notes on the Pentameracea, including a description of one new genus and one new subfamily. Thomas W.Amsden. In Journal of the Washington Academy of Sciences, 1953, vol.43, no.5. Washington : Washington Academy of Sciences, 1953, Journal of the Washington Academy of Sciences, 1953, vol.43, no.5.S.137-147, : .
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