246 CLASS IV. 



LOBED. 



16. Alcyonium pulmonaria. Mass round, and 

 lobed ; interior substance pulpy ; colour inclining to 

 olive. 



Seas of Europe. 



ORANGE OF THE SEA. 



17. Alcyonium lyticurium. Globular in form; 

 surface tuberculous and yellowish ; interior susbtance 

 fibrous. 



Northern seas, Mediterranean, and Cape of Good 

 Hope. 



PITHY. 



18. Alcyonium alburnum. Stem white, and branch- 

 ing ; extremities of the branches attenuated, and tu- 

 bulous. 



Indian Ocean. 



PLAITED. 



19. Alcyonium pUcatwji. Flat and large, gar- 

 nished above with thick, tortuous, undulated and 

 plaited laminae ; the upper border round ; oscules 

 or pores very small, and dispersed ; width twenty-five 

 centimetres at least. 



Var. B. Misshapen ; laminas irregularly raised and 

 plaited. 



Australasia. 



SINUOUS. 



20. Alcyonium sinuosum. The upper part of the 

 mass divided into upright laminae, which are short, 

 thick, tortuous, sinuous, and osculated in their termi- 

 nating border. 



