Corals from the China Sea. 457 



Porites soUda^ Forsk., sp. 

 1775. Madrepora solida, var. a, Forsk. Descrip. Anim. p. 131. 

 Itu-Aba, Tizard Reef, 2 fatli. 



Porites crassa ?, Queleh. 

 Porites crassa, Queleh, Chall. Rep. Reef-Corals, p. 183, pi. xi. figs. 2, 2a. 

 Tizard Bank, 7 fath. 



Genus Rhodar^a, Ed. & H. 



Rhodarcea fjracilis, Ed. & H. 



1860. Rhodaraa gracilis, Ed. & H. Hist. Nat. des Cor. t. iii. p. 184. 



One large globular specimen, with two thirds of its surface 

 covered by a compact coenenchyma. The corallites are not 

 Tnore than 2 millim. in diameter, and they thus correspond 

 rather with this species than with R. calycularis, Lamk., sp., 

 in which, according to Ed. & H., they are from 3 to 4 

 millim. in width. The description of the species given by 

 Ed. & H. is very meagre. 



From the Tizard Bank, Itu-Aba, depth 2 fath. 



The specimen is in one place incrusted by Heliopora 

 ecerulea. 



Rhodarcea (?) Lagrenii^, Ed. &. H. 



RhodarcBa (?) Laf/renii, Ed. & H. Monogr. des Poritides, p. 43; iid. 

 Hist. Nat. des Cor. t. iii. p. 184. 



The specimen doubtfully referred to this species is ramose ; 

 the branches about 10 millim. thick, uneven, nodose, fur- 

 cating, their lower portions completely enveloped by wrinkled 

 compact coenenchyma ; the calices oblique, about 4 millim. 

 wide. 



Macclesfield Bank, 40 fath. 



Genus Alveopora, Quoy & Gaimard. 



Alveopora dcedalea, Forsk., sp. 



1775. Madrepora d<sdalea, Forsk. Descr. Anim. in itin. Orient, observ. 



p. 133, pi. xxxvii. fig. B. 

 1879. Alveopora dadulea, Klunziuger, Die Korallth. des rothen Meeres, 



Th. ii. p. 47, pi. V. figs. 25, 26. 



Growing in branches and in lobate masses, the lower 

 portions of which are covered with a delicate, wrinkled, non- 

 perforate, epithelial membrane. Polyps only alive at summit 

 of specimens. 



Macclesfield Bank, at depths of 27 to 40 fath. 

 Ann. tt- Mag. N, Hist. Ser. 6. Vol. vi. 33 



