370 HISTORY OF BRITISH ZOOPHYTES. 
This very remarkable coralline is so insignificant when 
seen by the naked eye, that it would be passed over as un- 
deserving of regard, except by those who have been accus- 
tomed to scrutinize the ‘“ minims of nature.” The only 
specimen I ever had of it I received from Mrs. Gatty. In 
describing the cells, she compared them to little beetles 
that had lost their head. This is an apt comparison. As 
the stalk creeps along shells, one is ready to suppose that, 
if the head were away, the cells would creep also. The 
aperture of the cell is quadrangular, and partly clothed 
with a thin membrane. 
Genus XX VI. VALKERIA, Fleming. 
Gen. Char. Polypidoms confervoid, fistular, membranous, and 
variously branched: cells clustered, ovate, with a narrow base. 
“ Polypes with eight regularly ciliated tentacula.” No gizzard. 
—Johnston. 
1. VaLker1 Cuscura, Dodder Coralline. (Pl. XX. fig. 78.) 
Hab. West coast of England, Ellis; Devonshire, Mrs. 
Griffiths ; Exmouth, rock-pools, Rev. Mr. Hincks; Isle of 
Wight, Mr. W. Thompson; Leith shore, Jameson; Pol- 
perro, Mr. Couch; north of Ireland, Mr. W. Thompson ; 
. coast of Ayrshire, D. L. 
