170 GENUS ACTINIA [December. 



rine; several ranges of tubercles, resembling pearls, on the 

 borders. 



This species, when it expands, assumes the form of 

 the A. olivacea; the colour constitutes the greatest diffe- 

 rence between them. The figure, in the plate, represents 

 it in the act of expanding; and gives it of its natural size. 



Inhabits the Southern ocean; discovered inlat. 3^^ 30'. 

 --long. 28^ west. 



It was the specimen here described on which Mr. 

 Cuvier constituted his genus Minyas^ of Le Regne Ani- 

 mal, tome 4, p. 24, pi. xv. fig. 8; but the observations 

 of this author were made on the animal preserved in alco- 

 hol; my description and figure were taken from the living 

 animal, on board the corvette Geographe, at the place 

 indicated above. 



3,A,fiava. T. and L. (Plate VII. fig. 8.) Body 

 narrow, the base expanding in a form resembUng a tur- 

 ban; farrows numerous and narrow; tentacula open at 

 their extremity, and diaphanous. 



One cannot perceive, in this species, the punctured tu- 

 bercles which are conspicuous in the preceding. The 

 body is of a yellow colour; the disc is white, reddish at 

 its summit, and conic. The figure in die plate is of the 

 size of nature. 



Inhabits the Southern ocean; discovered in lat. 34' 30'. 

 long. 6^ west. 



4. A. hyalina. Body diaphanous, soft, with several lon- 

 gitudinal lines; tentacula longer than the body, of a red- 

 dish colour, deeper in the centre, and furnished with 

 verrucose annulations, four lines in length. Inhabits the 

 Atlantic ocean; and attaches itself to fuci. 



