Deaccessioned 06/11/2014. Not in Mission. Obsolete: Sowerby on Murex, Thesaurus Conchyliorum on Figures and Descriptions of Recent Shells. Parts XXXIII-XXXIV. A monograph on the genus Murex. This monograph was written during what was considered the golden age of sea shell collecting. It is a book of 264 drawings and classifications of conch shells.