358 HISTORY OF BRITISH ZOOPHYTES. 



" Earth has not a plain 

 So boundless or so beautiful as thine ; 

 The eagle's vision cannot take it in ; 

 The lightning's glance, too weak to sweep its space, 

 Sinks half-way o'er it like a wearied bird : 

 It is the mirror of the stars, where all 

 Their hosts within the concave firmament, 

 Gay marching to the music of the spheres, 

 Can see themselves at once." Campbell. 



Genus XVII. ESCHABA, Bay. 



Gen. Char. Polypidom membrane-calcareous, inflexible, brittle, 

 expanding in the form of foliaceous porous lamellae, variously 

 folded, and anastomosing, and consisting of two layers of oppo- 

 site cells : cells immersed, coalescent, horizontal to the plane of 

 the axis, opening on both surfaces in quincuncial pores, protected 

 with an operculum. Johnston. 



1. ESCHARA FOLIACEA, Stony Foliaceous Coralline, 

 Dillenms. 



Hab. In deep water. Sussex, Dillenius ; Isle of Wight, 

 Ellis ; Cornwall, Borlase and Couch ; Devonshire, Dr. Cold- 

 stream. When in Devonshire I received specimens of it 

 from Mrs. Gulson, Exmouth, and Miss Cutler, Budleigh 

 Salterton. 



