BRITISH ZOOPHYTES. 67 



1. H. MARGARICA, HlnclxS. 



Atractylis margarica {T.H.). 



Hab. : Ilfracombe, on F. foliacea, abundant. Poly- 

 pites wliite tinged with yellow, with about 30 tentacles 

 webbed at the base, alternately elevated and depressed, 

 each of the latter tentacles bearing a number of bean- 

 shaped thread cells, on its lower side forming ''a 

 girdle of pearls round the base of the tentacular ring.'" 



Genus IV. Garvbia, T. 8. Wright. 



Stems compound and branched — rooted by a filiform 

 stolon and invested by a polypary. Polypites fusiform. 

 Tentacles filiform, in a single verticil. Gonophores 

 borne on branchlets, producing fixed sporosacs. — T. H. 



1. G. NUTANS, T. 8. W. Plate III. fig. 6. 



Eudendrium (Corythamnium) bacciferum (^All.). 



Hab. : Inch Garvie {T. 8. W.), Firth of Forth and 

 MorecambeBay {All), Shetland [T. H.). Height 1 in. 

 Stem reddish-brown, orange towards tips, slightly 

 corrugated, much branched and fascicled. Polypary 

 continued over the base of the polypite, where it 

 forms a cup-like expansion. Polypite orange-red, with 

 10 tentacles. Gonophores borne like polypites at the 

 extremities of branchlets. 



The name nutans is derived from the fact, noticed 

 by Dr. Wi'ight, that " when irritated the zoophyte 

 bends all its polyps downwards, like flowers drooping 

 on their stalks. ^^ 



Genus Y. Bimeria, T. 8. Wright. 



Stems bi'anched, rooted by a thread-like stolon, all 

 enclosed in a chitinous polypaiy. Pohjij'des vase- 

 shaped, with a single verticil of filiform tentacles, the 



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