G. ALCYONIUM. 247 



DEVIL'S IL\ND. 



21. Alcyonium manus diaboU. A very shapeless 

 mass, irregularly lobed, subangular ; lobes coales- 

 cent, obtuse, cylindrical or compressed ; varying in 

 their length. 



Northern sea. 



DIFFUSE. 



22. Alcyonium diffusum. Branches numerous, 

 long, diffuse, almost compressed, irregular, and coa- 

 lescent ; oscules dispersed ; height from twenty-eight 

 to thirty centimetres. 



SCEPTRE-SHAPED. 



23. Alcyonium sceptrum. Long, cylindrical, and 

 in the form of a club ; oscules numerous, dispersed, or 

 in heaps ; fibres very fine, and incrusted ; colour 

 whitish ; height twenty-five centimetres. 



SWORD-SHAPED. 



24. Alcyonium ensiferum. Upright and branch- 

 ing ; branches long, almost compressed, curved like 

 a scimitar, simple or proliferous, porous, and os- 

 culated ; colour whitish ; height forty-five centime- 

 tres. 



Australasia. 



JUNCOUS. 



25. Alcy o^iVM junceum. Tuft of whitish shoots, 

 which are long, slender, branching, dilated or com- 



