32 MARINE POLYZOA. 



4. BEANIA. 



Polyzoary confervoid, subcorneous or calcareous. Cells arising 

 one from another by a slender filiform tube given off from the 

 lower part of the cell, which is open in front, the edges of the 

 opening furnished with hollow spinous processes arching over 

 the opening. Mouth terminal, with a denticle on each side. 



Beania, Johnst.Brit. Zooph. ed. 2. p. 3/1 ; Gray, Brit. Rad. 96. 

 Though ranged among the Vesiculariadae by Dr. Johnston, 

 this "remarkable" genus, as he justly terms it, is clearly to be 

 referred to the Cheilostomatous suborder. It is nearly allied on 

 the one hand to ^Etea, and on the other, through Diachoris, to 

 the Flustradse. As in Diachoris, the aperture occupies nearly 

 the entire front of the erect cell. It differs however from that 

 genus in the uniserial arrangement of the cells, and the marginal 

 spines which defend the sides and front of the aperture. 



1. BEANIA MIRABILIS. PI. XXIV. figs. 4, 5. 

 Costse seven to ten on each side. 



Beania mirabilis, Johnst. Ann. Nat. Hist. v. 272; Hist. Brit. 



Zooph. ed. 2. p. 372. f. 69, 70. 

 Hab. Britain, on shells. 



2. BEANIA AUSTRALIS. PI. XVI. figs. 1, 2, 3. 

 Costce eighteen to twenty on each side. 



Hab. Coast of Patagonia; Cape Horn, Darwin, on shells and 

 fucus. 



This species sometimes appears to form a connected frond, but 

 the cells are not so regularly interconnected as in Diachoris, and 

 are most usually truly uniserial. 



2. BI-MULTISERIALARIA. Cells disposed in a double or 

 multiple series. 



Fam. 5. FARCIMINARIAD^E. 



Cells disposed round an imaginary axis, alternate, forming 

 cylindrical branches of an erect, dichotomously divided, conti- 

 nuous polyzoary. 



Farciminariadae, Busk, MSS. 



1. FARCIMINARIA. 



Corneous, flexible ; margin of cell much raised ; aperture occu- 

 pying the whole front of the cell. Ovicell cucullate. 



Farciminaria, Busk, MSS. 



