244 PEOPESSOE P. M. DUNCAN ON THE 



largest and longest, but they are barely exsert; and the secondaries often have a tertiary 

 united to them very low down in the very deep calice, near the rudimentary columella. 

 The calicular margin is stout. 



Height -To inch; breadth of calice j^o-inch. 



The buds are bent slightly ; and the smaller ones have three cycles of septa. 



The form resembles Blastotroclius ; but the buds do not fall off, but remain to form 

 the tuft-like corallum. It is a genus allied to Smilotrochus, Ed. & H., and Onchotrochus, 

 nobis ; but the gemmation and epitheca separate it. 



Much resembling in its calice, except in the thick margin, Coenocyathns anthophyllites ; 

 this species, however, has no pali. 



Locality : Northern shores of Mediterranean, below tide-marks. 



Genus Blastosmilta, gen. nov. 



The corallum is compound ; and there are repeated gemmations from the wall of the 

 parent corallite, and occasionally from the walls of buds. The corallites are conico- 

 cylindrical, long, bent, except the parent ; and the calice is circular in outline and deep. 

 The wall is thin, and is covered with a granular epitheca, the rudimentary costse being 

 only visible close to the calices. The columella is rudimentary, but exists as trabeculae 

 from the septal ends. The septa are very thin, slightly exsert, not incised, project 

 but little into the calice; and the primaries, and sometimes the secondaries, unite 

 at the base of the fossa with the small deeply seated columella. There are six systems 

 of septa ; and the fourth cycle is usually incomplete in some systems. 



The dissepiments are wide apart, and are formed at the bottom of the calice by the 

 septal ends becoming oblique and wide and occluding the space below. 



Blastosmilia pouktalesi, sp. nov. (PI. XLV. figs. 14-17.) 



The corallum has a long parent corallite, with long cylindroid curved buds, curving 

 more or less in oblique series. The septa are unequal, the primaries being larger than 

 the secondaries ; they are also slightly exsert. The costae near the margin are broader 

 than the septa ; and the margin is unequally circular in young specimens, the intercostal 

 spaces bulging out in elegant curves. The septa of the parent are in six systems ; and 

 the fourth cycle is in all of them ; but there are only three cycles in the next in size. 



The columella is small. 



Height nearly 1| inch ; breadth of parent calice -^^ inch. 



Locality : Mediterranean, from red-coral zone. 



Count L. F. Pourtales, in his admirable description of the Deep-sea Corals (Illust. 

 Catalogue, No. iv. p. 21), described and figured a coral, Coelosmilia fecunda, Pourt., 

 which evidently has the closest alliance with this Blastosmilia. He remarks, after 

 describing his species, that the generic affinities are a little doubtful, and distinguishes 



