PUBLISHED BY KEEVE, BROTHERS. 



Just published, complete in one volirme octavo. 



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PRICE — In sheets, for cutting into labels 1 0-^ 



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HaJf-hound in calf, cloth sides, interleaved zcith blank 

 pages for remarks, synonymes, and additional 

 species 1 5 



THE 



CONCHOLOGIST'S NOMENCLATOR, 



A CATALOGUE OF 



ALL THE RECENT SPECIES OE SHELLS, 



INCLUDED UNDER THE SUBKINGDOM ' MOLLUSCA,' 



WITH THEIR AUTHORITIES, SYNONYMES, AND REFERENCES TO WORKS 

 WHERE FIGURED OR DESCRIBED. 



BY 



AGNES CATLOW, 



Authoress of ' Popular Conchology.' 

 ASSISTED BY 



LOVELL REEVE, A.L.S., F.Z.S., Etc., 



Author of the ' Conchologia Systematica,' and the ' Conchologia Iconica.' 



A systematic Catalogue of all the known recent Shells has long been a 

 great desideratum to the Conchologist. The discoveriL^s of the many 

 adventurous naturaKsts of the present century are of such a prolific cha- 

 racter, that an Index of Species, referring to the multifarious books and 

 pamplilets wherein they have been described or figm-ed, is greatly in 

 request, if only to prevent the dangerous repetition of specific names. 

 The increase of synonymes arises chiefly from the circmnstance of species 

 being described in different countries under different names ; and as the 

 objects of Natm-al History can only be satisfactorily determined by the 

 aid of an universal, not a national s^'stem of nomenclatm'e, too much 

 attention cannot be paid to the operations of foreign conchologists. 



The importance of keeping an Official Register, as it were, of Species, 

 is in no branch of Natural History more strikingly demonstrated than 

 in that of Birds ; the catalogue of ornithological synonymes is said to 

 be twice as extensive as that of authorised names, or, in other words, 



