CCELENTERATA. 23 



Tarn. e. Oculinidse. Oculina, Lopholielia, Amphi- 



helia. 



Fam. /. Pseudoturbinolidse. Dastnia. 

 Fam. g. Turbinolidae. Turbinolia, Flabellum. 



(Oscar Hertwig and Richard Hertwig, Die Actinien, Jena, 1879 ; 

 Gosse, Actinologia Britannica, 1860 ; Dana, Report on Zoophytes, 1849 ; 

 Milne-Edwards and Haime, Histoire Naturelle des Coralliaires, 1857-60.) 



Fig. IS. Astrcea pallida, a compound sclerodermic Coral, in a living condition. 

 (After Dana.) 



ORDEE II. ALCYONARIA. 



Fam. a. Alcyonidae. Alcyonium (Dead-men's Fingers), 

 Rhizoxenia. 



Fam. 5. Tubiporidse. Tubipora (Organ-pipe Coral). 



Fam. c. Pennatulidse. Pennatula (Sea-pen, fig. 20), 

 Virgularia (Sea-rod), Veretillum (fig. 19), Renilla, 

 Pavonaria. 



Fam. d. Gorgonidse. Gforgonia (Sea-shrub), Isis, Coral- 

 Hum (Eed Coral), Khipidogorgia (Fan-coral, fig. 21), 

 Mopsea. 



Fam. e. Helioporidse. Reliopora. 



Fam. /. *Halysitidse. Halysites. 



Fam. g. *Tetradiidse. Tetradium. 



Fam. li. *Thecidse. Thecia. 



