624 ZOOPHYTES. 



broadly plaited margin. It is more rigid in texture than the glaucum, 

 and grows to a much larger size. Fig. 7, plate 58, represents a spe- 

 cimen from Tongatabu, probably of this species. 



HI. Alcyonia glomerata, non ramosa, nee lobato-ramosa. 



20. ALCYONIUM PULMO. (Esper.) 



A. carnosum, glomeratum, semipedak et pedale, superfaie irregulari, et 

 sublobata, stipite crasso ; polypis 3'" longis, stelld expunsd 3'" lata, 

 alba. 



Carnose, glomerate, half a foot to one foot thick, surface uneven or 

 sublobate, pedicel stout; polyps 3 lines long, expanded star 3 lines 

 broad, white. 



Red Sea. Ehrenberg. 



Akyonium pulmo, Esper, iii. 38, tab. 9, The Alcyonium incrustans of Esper (ibid. 



figs. 1, 2. Referred here by Ehrenberg. 47, tab. 15) is an allied glomerate spe- 



Halcyonium pulmo, Ehrenb., G. xxiv., cies; and perhaps also his bulbosum (41, 



sp. 1. tab. 12). 



IV. Alcyonia ramosa, stipitis superficie lapidcsceitte. 



21. ALCYONIUM ELEGANS. (Milne Edwards.} Dana. 

 A. ascendens, subramosum, infra cylindricum et superjide lapidescens. 



Ascending and erect, subramose, below cylindrical, and the surface 

 becoming nearly solid by calcareous secretions. 



Mediterranean, near Algiers. Milne Edwards. 



Alcyonidia eZegans, Milne Edwards, Ann. des Sci. Nat., 2d ser., iv. 323, pi. 12, 13; 

 Lamarck, 2d ed., ii. 630. The figure represents a few clusters with a cylindrical stem 

 or base, the lower half of which is very different in appearance and texture from that 

 above ; and Milne Edwards states that the soft parts above withdraw on contraction into 

 the pedicel. 



APPENDIX. Ehrenberg describes from preserved specimens the 

 following species of " Lobularia." 



