Jn^f FuhJUhcd, ni Impnlal Hro., prier Cola}' red , \l . 5-y. Pla'iii 16.y. 



PART VI. / ^ -vr 



OF THE 



THESAURUS CONCHYLIORUM; 



EDITED AND ILLUSTRATED HY 



G. B. SOWERBY, JUN. F.L.S. 



Each Paut contains one or more Monographs of Genera of Recent 

 Shells, including a description and figure of each species and variety known 

 up to the time of publication, with its locahty and essential synonymes. The 

 work, when completed, wiU form a Conchological Library, sufficiently 

 comprehensive to render all other works on the subject unnecessary to col- 

 lectors. 



The Proprietor is happy to state that the first six Parts now before the 

 pubhc, have given universal satisfaction ; and he will endeavour to deserve 

 a continuance of the approbation wliich has been freely expressed. 



The price of each Part is calculated at the rate of about one shilling for 

 twelve figures. 



Parts 1, 2, 3, 4, 5, and 6, contain Monographs of the Genera IIe- 

 LiciNA, Pupina, Rostellaria, Aporrhais, Struthiolaria, Strombus, 

 Pecten, Pteroceeas, Hinnites, Lima, Cyclostoma, Scalaria, Colum- 

 BELLA, Terebra, Voluta, Tellina (including Tellinides), and Lingula, 

 illustrated by nearly 1,800 figures. 



Monographs of the folloMing Genera are now^ in preparation. 



Terebratula and the other genera of Brachiopoda 



by G. B. Sowerby F.L.S. 

 Spondylus and Plicatula by G. B. Sowerby, Jun. F.L.S. 

 Cymba and Melo, by G. B. Sowerbv, F.L.S.' 

 Cyclas by G. B. Sowerby, F.L.S. 

 Marginella, by G. B. Sowerby, Jun. F.L.S. 



In returning thanks for support already received, the Proprietor begs to 

 mention that such support would have been much more extensive but for 

 a disinclination on the part of some to take the numbers of a periodical 

 publication during its progress. It should, however, be remembered, that 

 each Fart of the ' Thesaurus ConchyHorum ' is 



COMPLETE IN ITSELF, 



independently of the general design which it assists in carrying out. Each 

 ]\Ionograph, containing aU the information that can be collected respecting 

 the Species of a Genus, might, with propriety, be published separately, and 

 under a distinct title. 



The Proprietor may further observe ; that it wUl be liis aim to arrange for 

 the completion of Families as speedily as circumstances wiU permit. Thus, 

 one Family is completed by the already published Monographs of the genera 

 HeUcina, Pupina, and Cyclostoma, which include aU operculated land shells. 

 Another Family is com])leted by the genera Rostellaria, Aporrhais, Stru- 

 thiolaria, Strombus, and Pteroceras. To the already given Monographs 



