@book {7514,
	title = {Appendix to marine shells of South Africa: a catalogue of all the known species with references to figures in various works, descriptions of new species, and figures of such as are new, little known, or hitherto unfigured},
	year = {1897},
	pages = {42},
	publisher = {Sowerby},
	organization = {Sowerby},
	address = {London},
	keywords = {avicula, biogeography, bivalvia, electroma, isognomon, isognomonidae, malleidae, malleus, mollusca, perna, pinctada, pinna, pinnidae, pinnoidea, pterelectroma, pteriidae, pterioida, pterioidea, taxonomy},
	author = {Sowerby, G. B.}
}
@book {7511,
	title = {A catalogue of the shells contained in the collection of the late Earl of Tankerville, arranged according to the Lamarckian conchological system; together with an appendix containing descriptions of many new species},
	year = {1825},
	note = {9 plates},
	pages = {vii+92},
	publisher = {E. J. Stirling},
	organization = {E. J. Stirling},
	address = {London},
	keywords = {avicula, bivalvia, crenatula, electroma, isognomon, isognomonidae, malleidae, malleus, meleagrina, mollusca, perna, pinctada, Pteria, pteriidae, pterioda, pterioidea, sale catalogue, taxonomy, vulsella},
	author = {Sowerby, G. B.}
}
@book {1577,
	title = {Appendix to marine shells of South Africa: a catalogue of all the known species with references to figures in various works, descriptions of new species, and figures of such as are new, little known, or hitherto unfigured},
	year = {1897},
	pages = {42},
	publisher = {Sowerby},
	organization = {Sowerby},
	address = {London},
	keywords = {avicula, biogeography, bivalvia, electroma, isognomon, isognomonidae, malleidae, malleus, mollusca, perna, pinctada, pinna, pinnidae, pinnoidea, pterelectroma, pteriidae, pterioida, pterioidea, taxonomy},
	author = {Sowerby, G. B.}
}
