Class VI. ACTINIA. 103 



in several ranges, short, and when open, form a 

 radiated angular circumference, like a beautiful 

 flower, with a smooth polygonal disc ; the color 

 of the stalk, a fine red ; of the tentacula varied 

 with several colors. This species is retractile. 

 Inhabits Cornwall. 



Hydra gemmacea. Gm. Z-in. bus glandulis longitudina- 3. Verru- 



cosa. 

 Studded. 



3868. liter striata. Hid. Jig. 4. 



Hydra disciflora, tentaculis re- A. B. 



tractilibus subdiaphanis ; Ellis Zoopk. 3. 

 corpore cylindrico, miliari- 



Ac. with a long cylindric stalk; marked with 

 elegant small tubercles, disposed in strait lines 

 from top to bottom ; the circumference of the 

 mouth striated, surrounded with short petals, 

 like those of the sun-flower; and those again 

 with white tentacula, barred with brown. When 

 drawn in, it assumes the form of a bell ; and 

 the lines of tubercles converge to the central of 

 the summit. Body of a pale red. 

 Inhabits Cornwall. 



