372 Mr. P. W. Bassett-Smith on 



Favia pandanuSy Dana, sp. 

 1848. Astresa pandanus, Dana, Expl. Exp. Zooph. p. 222, pi. xi. fig. 2. 

 Tizard Bank, 2 fath. 



Favia rotulosa, Ell. & Sol., sp. 

 1786. 3Iadrepora rotulosa, Ell. & Sol. Nat. Hist. Zooph. p. 166, pi. Iv. 

 Garvan Eeof, Ti/.ard Bank, 2 fath. 



Favia ^ sp. 



A portion of a specimen 80 by 50 millim. was dredged up in 

 a bag full of foraminiferous sand from the centre of the lagoon, 

 Tizard Bank, at a depth of 45 fathoms. There were sixteen 

 bright green living polyps on it, each with twelve yellow 

 tentacles. Calices circular or irregularly oval, about 8 millim. 

 wide, furrow between them well marked, septa with prominent 

 denticles. 



Tizard Bank, 45 fath. 



Genus GoNiASTR^A, Ed. & H. 

 Goniastrct'a Bovrno7ii^ E. & H. 



1850. Goniastrcea Bouruoni, E. it II. Ann. des Sci. Nat. 3* s^r. t. xii. 

 p. 162. 



A single specimen, taken alive, from Itu-Aba, depth 2 fath. 

 Tizard Reef. 



Genus PETONASTRiEA, Ed. & H. 



Prionastrua obtusata, Ed. & H. 



1850. Prionast7(ea ohtvmta, E. & H. Ann. des Sci. Nat. S"* ser. t xii 

 p. 180. 



One specimen only, taken alive. 

 Garvan Reef, Tizard Bank, 2 fath. 



Prionastrcea spinosa, Klunzinger, 



itraa spinosa, Kliiuz. Die Korallenth. d 

 9, Taf. iv. fig. 7. 



One specimen only. Nam-Yit^ Tizard Bank, \ fath. 



1879. Prionnstraa spinosa, Kliiuz. Die Korallenth. des roth. Meeres, 

 Th. iii. p. 39, Taf. iv. fig. 7. 



