CONCHOLOGY. 



ent folds with lines of a bright gold colour running round 

 each division. It is a native of the South Seas and of the 

 Islands of New Zealand, and is much valued by collectors 

 for its rarity and elegant form. The substance of the shell 

 is thin and bears some resemblance to that transparent ap- 

 pearance which is natural to the Helix, the Cypraja, and 

 the denser shells, being distinguished by a superior hardness 

 and firmness of texture and also capable of a higher polish 

 upon their surface. The Bulimus genus contains many 

 pleasing varieties, amongst which the minuter kinds that 

 have lately been discovered in the neighbourhood of New 

 Holland and Botany Bay, exhibit a most striking and curi- 

 ous tribe of shells, highly worthy of farther investigation to 

 the Naturalist, and in all which the analogy of the general 

 form is wonderfully preserved. The above is delineated 

 from a specimen in Mr. Bullock's Museum. 



The genus Melania differs from the Bulimus in having 

 a thick reflexed margin surrounding the whole of the mouth 

 and a different colour to the rest of the shell, in other 

 respects the form and character is very similar and not easi- 

 ly to be distinguished from the above. 



