PLUMULARIA. 147 



derrated that illustrate the ' magnalities of Nature/ and 

 take us by surprise, leaving us in wonderment at what may 

 be the great object of this her exuberant production of these 

 c insect multitudes peopling every wave/ " 



3. PLUMULARIA PENNATULA, Feather Coralline, G. Mon- 

 tagu. (Plate VIII. fig. 24.) 



Hab. Coast of Devonshire, Montagu ; on Pinna ing ens, 

 Cornwall, rare, Couch ; from a crab, and from Laminaria 

 digitata, Mr. Peach. " Specimens of this rare and beautiful 

 species profusely invest about six inches of the stem of L. 

 digilala, obtained in a fresh state by Miss M. Ball at You- 

 ghall," "W. Thompson; Roundstone, Galway, M'Calla. 



A person has only to look at the figure in the plate to 

 see that " this coralline is as remarkable for the elegance of 

 its form as its likeness to the feather of a pen." Height 

 from three to six inches. I have never seen but one spe- 

 cimen of it, and for that I am indebted to the kindness of 

 Mr. W. Thompson, who received it from Miss Ball. 



4. PLUMULARIA PINNATA, Branched Sea Bristles. (Plate 

 VIII. fig. 25.) 



Hab. On shells, stones, and other corallines; deep water. 



The finest specimens of this handsome coralline I have 



ever seen were dredged in Lamlash Bay, attached to Pecten 



