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I.—On the American Palæozoic Gasteropod, Trematonotus (Hall Emend. P. Fischer), and its Identification in Britain; with Description of a New Species
Published online by Cambridge University Press: 01 May 2009
Extract
Professor James Hall's discovery, in 1864, of his remarkable genus Trematonotus, in the Niagara rocks of North America, formed an interesting and valuable addition to his researches in conchological science.
The special features of this shell consist in its Bellerophontoid appearance, coupled with the presence of a single row of isolated perforations on the central part of the dorsal surface. It was somewhat erroneously regarded by its author as a sub-genus of Leveillia (Porcellia), though its unique characters would mark it as a distinct form, and probably more intimately related to the well-known Haliotis of our modern seas than to any other known shell.
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References
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