@inbook{NARMS:SourceID:380274, author = {Sowerby, G. B. II}, title = {Monograph of the genus Pecten. In G. B. Sowerby II (ed.), Thesaurus conchyliorum, or monographs of genera of shells. Vol. 1 (2): 45–78, pls 12–20. London, privately published.}, url = {https://www.biodiversitylibrary.org/page/43937271}, year = {1842} }