Sowerby, G. B. I. (1846). Appendix to part II. Descriptions of Tertiary fossil shells from South America. In: Darwin, C. Geological Observations on South America. Being the third part of the geology of the voyage of the Beagle under the command of Capt. Fitzroy, R.N. during the years 1832 to 1836. Smith, Elder & Co., London. pp 249-264, pls 2-5.
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Sowerby, G. B. I
1846
Appendix to part II. Descriptions of Tertiary fossil shells from South America. In: Darwin, C. Geological Observations on South America. Being the third part of the geology of the voyage of the Beagle under the command of Capt. Fitzroy, R.N. during the years 1832 to 1836. Smith, Elder & Co., London. pp 249-264, pls 2-5
