ORCHESTIA MEDITERRANEA. 



35 



since we are enabled to trace it along the coasts of the 

 Mediterranean (according to Edwards, Costa, and Lucas) 

 to the shores of the Crimea (Rathke). 



The following vignette of Caswell Bay is from the 

 pencil of our friend Mr. Lewis Dillwyn, M.P. for Swan- 

 sea. Caswell Bay is of a similar character to, and only 

 separated by a ridge of mountain limestone from, Lang- 

 land Bay, where the species was first taken. 



D 2 



