SCRUPOCELLAEIA. 343 



The inferior end of the cell as seen behind much contracted ; 

 the mouth regularly oval, and surrounded with a somewhat 

 tliickened margin, beset with minute verrucosities. There 

 is a row of from three to five small openings towards the 

 outer border of the cell on the back, and the upper and 

 outer angle in front supports a minute upright spine, which 

 is, however, not unfrequently wholly wanting. There are 

 no moveable appendages. The ovarian cells are rounded 

 and affixed above the cell to wliich they belong, and imme- 

 diately behind the upper margin of the mouth, which in 

 that case is slightly depressed. The external surface is 

 marked by lines crossing each other obliquely, and giving 

 it a tessellated aspect. The mouth of the cell is filled up 

 by a delicate transparent membrane, in the upper part of 

 which is situated the crescentic orifice, protected below by 

 a projecting, and probably moveable labium, as in others of 

 this class." {Busk.) 



Genus SCRUPOCELLARIA. 



1. SCRUPOCELLAEIA SCRUPEA, BusTc. 



Hab. Dredged near Dartmouth by Prof. E. Forbes, and 

 by Mr. M'Andrew in the Mediterranean. 



