XXY 



PAGfi,, 



Of the sea-urchin - . 275 



Of the acotn shell-fish, the thumb-footed shell-fish, 



and the imaginary barnacle 279 



Of themurex, which gives the Tyrian purple 280 



Of pearl muscles - - . 281 



The peculiarities of muscles in general - ib. 



In Port Mahon harbour muscles are found in stones of 



immense magnitude - - 288 



Of the bollani, which are found to live in large stones 



in the Adriatic sea - . - ib. 



Of other shell fish>found in Toulon harbour^ and on the 



coast of Ancona . . 283 



Of the pholades bollani, who buries itself in the hard- 

 est rock ib. 

 Of the animal flower in Barhacloes : it* peculiarities, 

 as it seems an aquatic sensitive plant s - 285 



