PLATE CXLVIII. 



This kind of Balanus is found affixed in large clusters to the bot- 

 toms of ships in our seas, but the general opinion is that it originates 

 in warmer climates, and should not be considered an indigenous 

 British species. A supposed variety of it of a dirty whitish colour, 

 is said to be found in the North seas, by Chemnitz. 



Balanus Tintinnabulum is admitted among the testaceous produc- 

 tions of our seas by Borlase, Pennant and Da Costa, and this we must 

 confess is the best apology we have to offer for inserting it in the 

 present Work. 



