Corals fi'om the China Sea. 451 



not incrusting. The under surface with delicate concentric 

 epitheca, not spinous. 



Macclesfield Bank, 40 fath. 



Montijyora porosa, sp. n. 



Corallum forming a tliin spreading frond from 1 to 2 

 tnillim. in thickness ; surface uneven ; over the greater part 

 of the frond calices are developed on both sides^ but occa- 

 sional patches of a concentrically-wrinkled non-spinous 

 epitheca are present ; calices few, irregularly scattered, not 

 prominent, about 5 millim. wide ; septa only represented by 

 twelve subequal, nearly horizontal spines round the margin; 

 coenenchyma minutely echinulate. 



A single specimen taken alive. 



Macclesfield Bank, 35 fath. 



Montipora^ sp. 



Corallum incrusting, thin ; upper surface uneven, with 

 occasional rounded papilla? or tubercles. Calices about '75 

 millim. wide, with six septa and sometimes smaller inter- 

 mediate septa. Coenenchyma finely echinulate. 



Macclesfield Bank, depth 44 fath. 



Genus TuKBlNARiA, Oken. 



Turhinaria stellulata, Blainv., sp. 

 1834. Astrceopora stelhdata, Blainv., var. 



A massive convex specimen ; surface reddish brown. 

 Calices irregularly arranged, 1 to 2 millim. apart ; margins 

 slightly elevated^ circular, nearly 2 millim. in width, very 

 deep ; twenty-four subequal vertical septa ; well developed 

 trabecular columella filling the base of calices. 



This form agrees fairly well with the descriptions of this 

 species, but the calices are closer arranged. 



Tizard Bank, 5 to 10 fathoms. 



Genus Madrepora, Linn. 



In the collection are no less than thirty-two species of this 

 genus, five of which were obtained in depths over 20 fath. 

 and are all, I believe, new. Four of them were from the 

 Macclesfield Bank, one from the Tizard Bank, and one was 

 common to both ; all these deep-water species were fragile, 

 and one was particularly beautiful {M, frof/tlis) . 



