371 
Corals from the China Sea . 
The description of this species states that it is cylindro- 
conical in form ; but in what appears to be a genuine speci- 
men of it in the British Museum there is a spreading basal 
platform, with here and there elevations, some of which are 
subcylindrical and rise to a considerable height. In the 
present specimen the subcylindrical portions are not developed. 
Genus Hydnophora, Fischer de Waldheim. 
1816. Monticularia microconos , Lam. Hist, des Anim. sans Vert. t. ii. 
p. 251, 2nd ed. (1836) p. 393. 
1786. Madrepora exesa , Ell. & Sol. (non Pallas), Zoophytes, p. 161, 
pi. xlix. fig. 3. 
A single specimen of this species from the east lagoon, 
Tizard Bank, China Seas, at a depth of G fath. 
1846. Me7'ulina rigida y Dana, Expl. Exp. Zoophytes, p. 276, pi. xvii. 
A single specimen from the east lagoon, Tizard Bank, at 
a depth of 6 fath. 
1786. Madrepora denticulata , Ell. & Sol. Nat. Hist. Zoophytes, p. 166, 
pi. xlix. fig. 1. 
A small specimen incrusting the base of a Madrepore. 
Tizard Bank, 7 fath. 
1857. Favia Okeni , Ed. & H. Hist. Nat. des Corall. t. ii. p. 430. 
A small specimen on the same block of rock with the pre- 
c ecies. 
Bank, 7 fath. 
Favia Ehrenhergi , Klunz., var. sulcata , Klunz. 
1879. Favia Ehrenhergi , Klunz. Die Korallth. des rothen Meeres, Th. iii. 
p. 29, Taf. iii. fig. 8 (var. sulcata). 
Tizard Bank, 5 fath. 
Hydnophora microcona , Lam., sp. 
Hydnophora rigida y Dana, sp. 
fig. 1. 
Genus Favia, Oken. 
Favia denticulata ?, Ell. & Sol., sp. 
Favia Okeni , Ed. & H. 
27 * 
