14 INTERTEBEATE AMIMALS. 



Family GORGONIDiE. yopywv, the Gorgon of the 

 ancients. 



Group 40. — Genus CORALLIUM (Lamarck), xo'pyj, maiden 



daughter; a\os, of the sea. Estimated number of 



species : recent, 3 ; British, ; fossil, 2 ; Kainozoic. 



H Specimens of Corallium rubrum, the RedfCoral of 



the Mediterranean ; one very large, with more 



than 40 tines. 



Group 41.— Sub-family ISIDIN^ (Milne Edwards). Io-jo-, 

 the goddess Isis. Estimated number of species : 

 recent, 13 ; British, ; fossil, 4 ; Kainozoic. 



H Mopsea, with slenderly forked branches ; Isis, 

 (decorticated) with black and white articula- 

 tions, and Melitea with various shades of 

 scarlet and bright yellow : all have joints 

 or rendering them more or less flexible. 



Group 42.— Sections GORGONELLACE^ and BRIAR- 

 AC^ (Milne Edwards). 



Section it here tised as eqiiivalent to ' AgeW (Milne Edwaeds). 



Estimated number of species : recent, 15 ; British, ; 



fossil, 0. The axis of the stem is either sub-calcareous, 



or made up of spiculse. 



IT Examples of Verucella and Juncella, and a very 

 beuutiful specimen of Paragorgia Johnsoni 

 from Madeira, presented by its discoverer, 

 J. Yate Johnson. 



Group 43.— Section GORGONACE^. Part I. Foliaceous. 

 Estimated number of species : recent, 25 ; British, 2. 

 U Phyllogorgia, in which the polype crust is 

 expanded, forming wings on each side of the 

 stem. Rhipidigorgia, or Sea-Fans, in which 

 the branches repeatedly unite, forming a net- 

 work. 



