64 THE FOSSIL CORALS AND 



Illustrations of the Species in Plate VI. 



Fig. 3. Calices: magnified. 



4. Other calices, magnified, showing the large costal continuation 

 from one calice to the other. 



2. Favia pbdunculata, Duncan. Plate VI, Figs. 5, 6. 



The corallum is rather convex above, thin at its circular edge, and broadly pedun- 

 culate, there being also a delicate epitheca. The calices are exceedingly irregular in 

 shape, size, and depth, but all have close, low, flat, broad granular costse, vrhich are 

 subequal and slightly separate at the margin, and a distinct line or depression limits 

 one calice from another, and usually, but not invariably, interferes veith direct costal 

 communication. The calices, long, hexagonal, square, irregular or circular in outline, 

 are shallow and widely open. The septa, about 60 in number, in the largest calices, 

 arise from the nearly equal costse, and, as a rule, are alternately large and small, the 

 largest being the longest and reaching a columella; they are all slight in breadth 

 and height, and are often curved sideways. The columella is trabecular, and assumes 

 a broken lamellar shape in long calices. 



When calices unite, the crest may be sharp and the line wanting, or it may be 

 rather flat, and then the limiting line is distinct. 



The breadth of the corallum is 4 inches ; height 1 1^ inch. 



Length of longest calice -^ inch. 



Locality. Maliri, south of Chotra, at the top of the Khirthar group or base of the 

 Nari series. Survey-number G 



3 02 

 92 • 



Illustrations of the Species in Plate VI. 



Fig. 5 . Part of the upper surface of the corallum : natural size. 

 6. Calices : slightly magnified. 



Genus ASTEOCCENIA, M. Ed. & J. H. 



1. AsTEOCCENiA NUMisMA, Befrance, sp. Plate VI, Figs. 13-15. 



The corallum is discoid and very thin, subpedicillate, or placed on a small nummu- 

 lite, and slightly convex above, with thin edges. The epitheca is in delicate circular 

 ridges, and costse are faintly visible. The calices are placed with great regularity, and 

 they appear to have increased in size and to bud at the edge ; they are nearly equal 

 in size, and are regularly hexagonal and shallow. The columella is cylindrical, sharp, 

 and projects. The septa are usually 20 in number, and are alternately large and small. 

 The intercalicular spaces are small and costulate. 



Breadth of the largest corallum ^ inch ; height -^^ inch. 



Locality. Gagar nala, N.E. of Bula Khan's Thana, and east of Surjana, Khirthar 

 series. Survey-numbers G x§f , G fyf . 



This beautiful species has also been found near Gap, in the district of Nice, in the 

 Nummulitic of the Hautes. Alpes. 



