Manchester Memoirs, Vol. liv. (1910), No. \% 



XII. On a new Octoradiate Coral, PyrophylHa inflata 

 (new genus and species). 



By Sydney J. Hickson, D.Sc, F.R.S., 



Professor of Zoology in the University of Mancltesttr. 

 Read rgth April, and Received 21st Aprils rgio. 



A few small corals were observed b)- Mr. Standen of 

 the Manchester Museum in a bottom deposit obtained by 

 Mr. Townsend at a depth of 156 fathoms in the Gulf of 

 Oman (Persian Gulf). 



They were handed to me for examination and have 

 proved to be of extraordinary interest. At present I have 

 examined about forty specimens, but I have little doubt 

 that more will be found when the deposit has been 

 thoroughly overhauled. Many of the specimens are 

 broken and others waterworn, but there is a sufficient 

 number of nearly perfect specimens to determine the 

 important characters. 



As the genus to which the corals belong has not, so far 

 as I can discover, been described, I propose to name them 

 PyrophylHa inflata (N, g. et s.). 



The corals are solitary and unattached, slightly bent 

 and hornshaped, with an inflated base. The size varies to 

 some extent, but a medium-sized full grown specimen is 

 about 4 to 5 mm. in length and i mm. in diameter at the 

 margin of the calyx. 



The most important character exhibited by this coral 

 is, that there are eight stout protosepta and eight slender 



May iilh, igio. 



