FLUSTRA. 355 



a work on fresh- water zoophytes. I did so; and I had a 

 very friendly letter from him, saying that it was very in- 

 teresting, but that he would like to examine it in a living 

 state before giving his opinion respecting it. In a letter 

 which I lately had from Mr. Wigham, he mentions that he 

 had shown it to Mr. Peach, who said it greatly reserabled 

 Memhranipora Peachii, which he had found in the dock at 

 Ipswich ; but yet it seemed distinct ; as the one found at 

 Ipswich had three inflected spines on each cell, whereas the 

 Yarmouth one was invariably without spines. 



Corresponding lately with Mr. Busk, of Greenwich, I 

 sent him a specimen of the Yarmouth zoophyte, and he 

 wrote to me that it seemed to be Flustra distans of Mr. 

 Hassall, of which he had a specimen named by our lamented 

 friend Mr. W. Thompson. I have not at hand the volume 

 of the ' Annals of Natural History,^ in which it is figured 

 and described by Mr. Hassall. 



12. Elustea hispida, Eough Sea-mat. 



Hab. In irregularly-shaped patches on Fucits serratus ; 

 common. 



This, like many other common things, possesses uncom- 

 mon beauty, but as this beauty must be " sought out,^^ not 

 one in ten thousand ever sees anything remarkable in it. I 



