PREFACE. 



The specimens of Mollusca and Shells marked B.M. 

 in the following List, were received from the Executors of 

 the late M. Souleyet, as the type specimens described 

 and figured in the " Histoire naturelle des Mollusques 

 Pteropodes, Monographie comprenant la description de 

 toutes les especes de ce groupe de Mollusques, par MM. 

 P.-C.-A.-L. Rang et Souleyet. Accompagnee de quinze 

 planches coloriees. A Paris, 1852. Folio:" and in the 

 "Voyage autour du Monde, execute pendant les annees 

 1836 et 1837, sur la Corvette La Bonite, commandee 

 par M. Vaillant, Capitaine de vaisseau. Publie par ordre 

 du Gouvernement, sous les auspices du Departement de 

 la Marine. Histoire Naturelle : Zoologie : par 'MM. 

 Eydoux et Souleyet, Medecins de l'Expedition. Atlas. 

 Paris. Folio." 



The text of the Zoological part of the "Voyage" has 

 not yet been published ; but there is a detailed explanation 

 of the Plates, with only the French names of the species, 

 which are given in this Catalogue, with the Latin names 

 used by Lamarck, or given by M. Souleyet, when the 

 name occurs, in a small MS. list which accompanied the 

 Collection, as being that which he intended to have used if 

 he had lived to publish the descriptions. 



JOHN EDWARD GRAY. 



January 11, 1855. 



B 



