150 antheadjE. 



tentacles as furnished with a retractile pencil of hair at the 

 tip.* Nothing corresponding to this peculiarity belongs 

 to either of our species ; but it is so utterly abnormal, that 

 I cannot help suspecting some source of illusion : and the 

 more, because I learn from Mr. Holdsworth, that Anthea 

 cereus is abundant at Madeira. 



However, the A. pustulata of the same author f must 

 certainly constitute a distinct genus of this family. It 

 appears to be essentially an Anthea, but with the column 

 covered with warts. It would form, therefore, an osculant 

 form, connecting Antheadaz with Bunodidm; as our Aiptasia, 

 in its acontia and cinclides, links the family with the Sagar- 

 tiadai. 



The New Norwegian genus, Actinopsis,\ must, I suppose, 

 be referred hither. 



* Dana's Zoophytes, 126 ; pi. i. fig. 1. f Ibid. 128 ; pi. i. fig. 2. 



t Faun. Litt. Norv. ii. 89. 



ANALYSIS OF THE GENERA. 

 Mo uth normal. 



Skin smooth. 



Column long, trumpet-shaped : furnished with 



acontia and cinclides Aiptasia. 



Column short, broad : destitute of acontia and 



cinclides Anthea. 



Skin warted (Not British) " A. pustulata" 



Gonidial tubercles elongated Actinopsis. 



