1817.] GENUS CARYOPHYLLIA. 179 



four in number, of a grayish red; cellules very short, and 

 as long as broad. This species covers the volcanic rocks 

 of Pointe noir, at Guadaloupe, 



2. C. fiava. (Ellis and Solander; page 180, n. 6, 

 Alcyonium ocellatum?) Tentacula yellow; centre of the 

 disc yellowish; cellules three times as long as broad. 



When the animal is contracted, one distinguishes 

 several radiated lines proceeding from the aperture; when 

 the animal is expanded it presents the same aspect as the 

 foregoing. 



Inhabits the island of St. Thomas. 



One may easily perceive that the foregoing described 

 animals, which I have thought it advisable to class under 

 four genera, may be collected into one family, under the 

 common name Actinia, It is thus that I have arranged 

 them in a table, which, at present, I want room to publish. 

 I shall now give a description of three madreporic ani- 

 mals, of different genera, in order to show their affinity 

 to the preceding. 



Caryophyllia solitaria, ( Plate VIII. fig. 10. ) Cel- 

 lules cylindric, generally insulated, radiated in the centre, 

 furrowed on the exterior; animal diaphanous, ornamented 

 with twenty-two tentacula^ which are thick and short, and 

 covered with white spots, twelve of these tentacula are 

 annulated with red at their extremity; aperture of the 

 mouth linear, marked with three black bands on each 

 side, those of the middle largest. 



Whilst the animal is expanded, it rises partly out of 

 its habitation, and elevates its mouth beyond its tentacula. 



Inhabits the madreporic rocks of Guadaloupe. 



