297 



This genus, like other very numerous ones, possess- 

 ing but few variations of character, requires a more na- 

 tural association of its species; as a guide to which, the 

 peculiar structure of the spiral whorls, in addition to 

 the more or less elongated shape of the shells, might 

 be adopted by the Naturalist. The only shells that 

 could possibly be confounded with this genus, are 

 young examples of the G. Cypraea; but the latter, in 

 that stage of growth, are extremely thin and of light 

 weight, which at once distinguishes them from the G. 

 Conus. 



As it is not the intention of this work to point out all 

 the rare examples of each genus, they have in a very 

 few instances only been mentioned. But the C. gloria- 

 maris, the most rare of this genus, must not pass unno- 

 ticed, as there are only a very few examples of it known ; 

 one of which, formerly belonging to M. de Calonne, is 

 in the Tankerville Collection. There are many other 

 extremely rare and valuable species, viz. the C. omai- 

 cus, C. aurisiacus, and the varieties of the C. cedonulli, 

 too numerous to be here mentioned; all of which are 

 to be found in the above matchless cabinet. 



