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JOURNAL R. A. g. (CEYLON.) [Vol. III. 



surrounded with an elevated hexagonal ring, taking the form of 

 a cup, on the centre of which is the transverse slit of the 

 mouth. 



This parasitical anemone is found on Pearl Oysters, in the 

 Harbour of Trincomalie. It grows very rapidly in the Viva- 

 rium, and is a good guide for ascertaining the quality of the 

 Sea water in which it is placed. When the water is impure, 

 or any animal in it dead and decaying, this Actinia shrivels 

 up and assumes a dark-brown or blackish colour, and as the 

 water is purified the creature regains its pellucid form, 



Anthea arachnida. Kel. 



Kesembling the A. Indica, but much smaller, and the disc 

 is spotted black. The tentacles worm-like ; pellucid-white, and 

 spotted dusky. Found on rocks and shells. 



Anthea aurea. Kel. 



This is a very minute species ; when elongated, nearly one inch 

 high, and scarcely four lines in breadth. Body pellucid, tentacles 

 few, short ; golden-yellow. 



Found on rocks and shells. 



Anthea meleagrina. Kel 



Body short, broad, greenish, translucent, slightly tubercular. 

 Tentacles numerous, of moderate length, narrow, pointed ; 

 greenish-brown, with darker brown rings. Mouth slightly 

 elevated. Disc pale-green. 



Height J inch. Breadth If to 2 inches when expanded. 



Found in the Inner Harbour, in deep water, adhering to 

 Pearl Oyster shells. 



ACTINODENDRON ARGENTEA. Kel. 



Body white. Disc granular, frosted white. Tentacles short, 

 acute ; silvery-white, transverse granulated lines on inner surface ; 

 short pinnules on sides. 



