14 INVERTEBRATE ANEMALS. 



but does not contract any adherence. Estimated 

 number of species: recent, 26; British, 3; fossil, 1. 

 IT Examples of Pennatula, Virgularla, Pavonaria. 

 Many specimens of Renilla were brought in 

 the "Argo" from Tucacas. The animal in life, 

 with the polypes expanded, is extremely 

 beautiful. 

 Fine specimen, in liquid, of Pavonaria quadrangu- 

 laris, dredged by Mr. McAndrew. 

 Upper Compartment. 

 Quills of a gigantic Sea-Pen, from British Columbia. 



Family GORGONID^. yopy^v, the Gorgon of the 

 ancients. 



Group 40. — Genus COR ALLIUM (Lamarck). xop>), maiden 



daughter ; aAor, of the sea. Estimated number of 



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



IT Specimens of Corallium ruhriim, the Red Coral of 



the Mediterranean ; one very large, with more 



than 40 tines. Fine examples of Corallium 



from Japan, including a milk-white variety. 



Group 4L- Sub-family ISIDIN^ (Milne Edwards). Icr.cr, 

 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, 

 rendering them more or less flexible. 



Group 42.— Sections GORGONELLACE^ and BRIAR- 

 AC^ (Milne Edwards). 



Section is here ^ised as equivalent to 'Agile ' (Milne Edwards). 



Estimated number of species: recent, 15; British, 0; 



