140 HISTORY OF BRITISH ZOOPHYTES. 



fessor E. Forbes ; Sana Island, off Kintyre, Mr. Hyndman ; 

 Liverpool, Mr. H. Johnson ; "Whiteburn, Miss Dale ; Scar- 

 borough, Mr. Bean; Bootle Bay, Mr. Tudor; Cornwall; 

 Devon ; Norfolk, Mr. Peach. 



This zoophyte is generally three or four inches high, 

 though Mr. Hyndman has dredged it on our west of Scot- 

 land coast six, and in one instance, ten-and-a-half inches in 

 height. It is a remarkably handsome zoophyte, of a palish 

 horn-colour, clean and clear ; the pinnae, which are subalter- 

 nate, branching out like polypody, whence its English name. 

 The cells are in rows on each side of the pinnas. The vesi- 

 cles are generally on the upper side of the pinnae, though 

 occasionally on the under. I have some finely branched 

 specimens of it from Mr. Tudor at Bootle. 



Genus VIII. ANTENNULARIA, Lobster's Horn 

 Coralline, Lamarck. 



Gen. Char. Polypidom plant-like, horny, simple or branched 

 irregularly, the shoots fistular-joiuted, clothed with hairlike verti- 

 cillate branchlets ; cells small, sessile, campanulate, unilateral ; 

 vesicles scattered, unilateral. Name from the feeler of an insect. 

 Polypes hydraform. Johnston. 



