94 



exsert, while tliose of the other cycles diannish in size in serial 

 succession. 



Columella very deep-seated and very sharply delimited from 

 the septa, consisting of two or more curling ribbons. 



The appearence of this coral is exactly that of a Caryophyllia 

 devoid of pali, or of a Desmophyllum with a Caryophylliaceous 

 columella. 



Height of corallum 17.5 millim. 



Major diameter of calicle 8 » 



Minor » » » 7 » 



8. Trochocyathus caryophylloides n. sp. 



Corallum fixed by a very short and rather slender peduncle 

 with a non-encrusting base, a little curved and cornpressed, the 

 major axis of the calicle on a slightly lower plane than the 

 minor. Thecal wall finely granular; the costse are little more 

 than granular strise, becoming distinct ridges only near the ca- 

 licular margin. 



Septa stout, exsert, their surface beset with radiating rows of 

 small granules; they are 64 in number and have an apparent 

 arrangement in eight systems of four cycles. Those of the first 

 two cycles are equally large and exsert; those of the third cycle 

 are a little smaller and less exsert than their predecessors and a 

 little larger and more exsert than their successors. 



Pali stout but lamelliform, 32 in number and placed opposite 

 all the septa except those of the last cycle; they are of two 

 sizes — large ones. opposite the 16 septa of the apparent third 

 cycle, and small ones opposite the 16 septa of the apparent first 

 two cycles — but they all stand in one riug of wouderful regularity, 

 sharply defined both from the septa and from the columella. 



Columella deep-seated, formeel of a somewhat spongiform cushion 

 of coarse granules. 



Corallum whitish, soft parts brownish or reddish purple. 

 Height of corallum about 23 millim. 

 Major diameter of calicle 23 » 



