104 



ACTINIA. 



Class VI. 



4. Hemi- Hydra mesainbryanthemum 

 SPHERICA. Gm. Lin. 3868. 



Button 



gine tuberculato. Hid. Jig. 

 5. A.B. 

 Hydra disciflora, tentaculis re- Ellis Zooph. 4. 

 tractilibus, extimo disci mar- 



Ac. with a smooth short thick stalk ; the edge 

 of the disc surrounded with a single row of 

 tubercles ; the tentacula numerous and slender. 

 Color, a dull crimson. Retractile, and flings 

 itself in that state into the form of a conoid 

 button. 



Inhabits most of oar rocky shores. 



5. Penta- Hydra dianthus. Gm. Lin. Tr. 1767. p. 436. tal. xix. 



petala. 38 6 9 . f m 8 . 



° "* ' Actinia dianthus. Ellis Ph. Ellis Zooph. 7. 



Ac. with a circular contracted mouth ; the disc 

 divided into five lobes covered with several series 

 of short subulated tentacula. Stalk short and 

 thick. When contracted, assumes the form of 

 a Ions white 6°:. 



Inhabits the rocks near Hastings, Sussex. 



6. Macd- A. effceta. Adams in Lin. Tr. v. 8. Turton Br. Faun. p. 50. 131. 

 LATA. 



* Ac. with very numerous retractile short white 

 feelers ; base crenated ; body grooved ; the lower 



