on a new Marine Animal, 345 



while the Bnhn^al was alive. This alfo is larger than the 



animal. 



a. The fort of brain-flone in which the animal was dif- 

 covered. 



b. The external prominent (liell. 



cc. The membrane which is protruded with the cones and 

 moveable (hell, and makes a fold over the edges of the promi- 

 nent {hell. 



dd. The membranes and tentacula in a ftate of expanfion. 



e. The inner fic!e of the moveable fliell, as it appears when 

 protruded. 



f. The hole in the brain-ftone as it appears when the promi- 

 nent fhell is brok^en oft, and which may be feen in many fpeci' 

 mens of brain-ftone. 



Zz 2 



