PREFACE. 
The specimens of Shells in the following list marked 
B.M. were received from Professor Alcide d’Orbigny, as the 
type specimens described by him in the Hollusca part of the 
“ Histoire physique, politique et naturelle de I’lle de Cuba, 
par M. Ramon de la Sagra, Directeur du Jardin botanique 
de la Havane, Correspondant de I’lnstitut Royal de France.” 
Paris, 8 VO, with a folio Atlas. 
The specimens are on their original cartoons, named by 
M. d’Orbigny, and marked with their special habitats. 
JOHN EDWARD GRAY. 
Sept. 1, 1854. 
