Spain generally vary in some degree from our's, 

 which renders it desirable to possess them. 



THE common shells (except the oyster) 

 which are found in the Guadalquiver, at Cadiz, 

 and up the Mediterranean, at Cette, Marseilles, 

 and more particularly at Naples, (where there is 

 a great variety of coral), are desirable ; and even 

 those which resemble the species in the English 

 seas, for, on close examinatioD, they are found 

 to differ materially. We are little acquainted 

 with the shells from the south coasts of the 

 Mediterranean, Malta, Sicily, or the Archi- 

 pelago. 



WHEN at Magadore, I found fine limpets, and 

 an interesting variety of barnacles ; also mus- 

 cles, and various land helices, which I persuad- 

 ed the Moors to bring from the interior. 



MANY varieties of shells, some of which are 



