28 THE FOSSIL CORALS AND 



This species is more closely allied to Trochocyathus sinuosus (Brongniart's sp.) 

 of the Eocene of the Vicentin, of Brazzano in the Friuli district, and of La Palarea, 

 than to any other form. 



Oenus PLACOCYATHUS. 



Placocyatlius, M. Ed. Sf J. H., Hist. Nat. des Gorall. vol. ii. p. 58. 



1. PLACOCYATHUS STEIATUS, JDuncan. Plate XIV, Figs. 8-10. 



The corallum is simple, short, with a broad attached base and slightly sloping sides, 

 covered with a faint epitheca, through which the straight and alternately large and 

 small, rounded, slightly projecting costse are seen. The calice is longer than broad, is 

 deep, and the thick margins are slightly sinuous. 



The septa are very numerous, small, crowded, and unequal: a few large ones 

 reach the bottom of the fossa, and are in contact with a short lamelliform columella ; 

 these septa, probably eighteen in number, have pali at their columellary ends, which 

 merge gradually into the laminse; the other septa, not reaching so far, are slightly 

 wavy and close to the wall. At the margin there are a number of systems of three 

 septa between two large ones, the middle one of the three being slightly larger than 

 the small one on either side. The costse are a marked feature, and give a striped 

 appearance to the outside. The sides of the septa are granular ; and in some places 

 the granules are nearly worthy of the name of synapticulse. 



Height of the corallum -^ inch. 



Length of the calice 1 inch. 



Locality. Lynyan, Eanikot group. Survey-number G fff • 



Illustrations of the Species in Plate XIV. 

 Fig. 8. A side view of the coral : natural size. 

 9. The columella and some pali : magnified. 

 10. The costse : magnified. 



This is the only representative of the genus in the Indian Tertiaries. The others 

 are of Miocene age in the West Indies. 



Subfamily TUBBINOLIACEJS. 



BLAGEOVIA, gen. nov. 



The corallum is simple, turbinate or subturbinate, and attached by a small 

 peduncle. The calicular fossa is very deep ; the septa are numerous and unequal, and 

 the costse are covered with an epitheca which permits the larger being seen, and they 

 reach the small base. There are no endothecal dissepiments, pali, or columella. 



This genus has close structural resemblances with Smilotrochus, from which it 

 differs in the possession of an epitheca and peduncle of attachment. 



1. Blageovia simplex, Duncan. Plate XIV, figs. 11-13. 



The corallum is small, compressed, turbinate, and the small base has a scar of 

 attachment, and the primary costse and some secondaries reach it. The septa are very 



