of Helix, HsUcina, Pupa, OifUndrella, Megalomastoma^ 

 Cyclostoma, S^c. 



A few Sets of the Shells from MAZ ATLAIS" and the GULF 

 OF CALIFORlSriA at the following very moderate prices. 

 50 species for 31s , (or 100 species for £2 12s. 6d.), including 

 a copy of " Carpenter's Catalogue of the Mazatlan Shells," 

 published by the British Museum, 8vo., 8s. 



A series of 50 named species (2 of each kind) of , the Grenus 

 ACHATINELLA, £1 10s. Ditto of 100 species. 



" Genera " to illustrate "Adam's Genera," " Chenu's Manuel 

 de Conchyliologie." " Woodward's Manual of the Mollusca," 

 100 genera for £1 10s. j* ditto, select examples, £3.* 



LAND SHELLS. — A collection from all parts of the world, 

 1000 species, 50 gs. 



100 species of named Cones £ 5 5s. ") and sets of other 

 100 species of named Cyprea £ 5 5s. S genera. 



In addition to the foregoing a large miscel- 

 laneous stock, among which wil] be found many rare 

 and beautiful examples, ever}^ effort being made to 

 secure whatever is new and interesting to collectors. 



{^ Naturalists travelling or residents in foreign 

 stations, are solicited to open a correspondence with 

 K. D., either for the sale or the exchange of their 

 duplicate specimens. Instructions for collecting 

 objects in foreign countries will be gratuitously given 

 on application. 



BRITISH SHELLS. 



K. D. has given much attention to this interesting 



* Sets of these have been supplied, aud are exhibited at the South 

 Kensington Museum. 



