42 THE FOSSIL CORALS AND 



junction. In one specimen there is a single large calice, in the midst of others of the 

 usual kind, which has twenty septa; but it appears that, ten of them reach the colu- 

 mella fairly, the rest joining others close to it. Nevertheless the presence of rudimen- 

 tary septa between the usual ten, in ordinary calices, is not noticed. 



The width of the base is 2^% inches ; the height of the corallum is 1^ inch, and that 

 of the corallum from the margin* to the base of the stalk is yo inch. 



The calices differ in size, but seven of them are included in 1 inch of length. 

 The solitary large calices are t% inch long and very shallow. 



Locality. Three miles west of Lynyap, Eanikot group. Survey-number G f |f * . 



Illustrations, of the Species m Plate Xy. 



Fig. 1. The corallum : natural size, side view. 



2. The corallum from above. 



3. The base, part of: slightly magnified. 



4. Calices: magnified. 



5. Side view of a dentate septum : magnified. 



AsTEoccENiA Blanfordi, JDuucan.. Variety., 



This variety has only a short stump instead «f a stalk ; and the calices^ hexagonal 

 as a rule, are elongate radially, and the short sides are therefore internal and external. 



It is from the same locality as the type. 



2. AsTROCCENiA CBLLULATA, Ihmcan, Plate XIV,. Fig, 7. 



The corallum is circular in outline, and is. short, being very slightly convex above, 

 and furnished with a complete epitheca with concentric folds below. No costse are 

 visible. 



The calicular surface is crowded with small calices, which are shallow and pen- 

 tagonal, hexagonal, or deformed in outline. A raised margin separates the calices, 

 whose septa arise from it, and there is a ledge of endotheca, resembling an inner margin, 

 one third or midway between the calicular marginal edge and the columella. There 

 are usually ten distant, thin septa, which pass from the margin over the ledge to 

 the small, rather compressed, styloid columella. In a few calices a rudimentary septum 

 exists, here and there, between the others. 



Length of corallum not quite an inch; height, extreme, j^ inch. Breadth of 

 calices yr to -5^ inch. 



Locality. Jhirk, in the Eanikot group. Survey-number G xlfa- 



Illustration of the Species in Plate XIV. 

 Fig. 7. Calices : magnified. 



3. AsTROCCENiA NANAj Bcuss. Plate XV, Figs. 10, 11. 



A specimen of a small-caliced Astroccenian, smaller than the type from Monte 

 delle Carrioli described by my lamented J&iend A. E. Eeuss (in his ' Palaontologische 

 Studien iiber die alteren Tertiarschichten der Alpen,' pt. 1, 1868, p. 40, Vienna), is a 



