56 THE FOSSIL COEALS AND 



Length of three calices and their costse about ys inch. 

 Height of the full-grown corallum 2^ inches ; breadth 6 J inches. 

 Locality. South-west of Jhirk, Eanikot series (Survey-number G fff ) ; and at 

 Jhirk (Survey-number G fffj- 



Illustrations of the Species in Plate XIX. 



Fig. 1. A small corallum: natural size. 



2. Calices : magnified. 



3. A long calice : magnified. 



Group MADEEPORARIA PERFORATA. 

 Family MADBEPOBIJ)^. 



Subfamily EUPSAMMINE^, M. Ed. Sr J. H. 



Genus STEPHANOPHYLLIA. 



StephanophylKa, Michelin, article Astree, Dictionnaire des Sciences Nat., Swpplem. vol. i. p. 484. 



1. STEPHANOPHYLLIA Indica, Duncan. Plate VIII, Figs. 7-10. 



The corallum is almost hemispherical, but is slightly depressed at the columellary 

 portion. The base is circular in outline, slightly concave, and no traces of costse are 

 visible : there appears to be a perfectly plane surface. 



The margin of the corallum is marked by trabeculse and the origin of the septa, 

 and there are about three rows of the horizontal series of them. The columellary space 

 is flat, trabecular, and circular in outline. The septa are in six systems of four cycles : 

 the primaries are the longest, and are separated from the others ; the secondaries, not 

 so stout as the primaries, are nearly as long, and are joined by the tertiaries not far from 

 their axial end ; and the higher orders unite to the tertiaries about midway in the calice. 

 Usually each septum is the result of the union of two trabeculse at the margin. The 

 largest septa are straight and stout, and they have minute granules on their sides and 

 upper margin. 



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



Locality. Jhirk, Eanikot group. Survey-number G \ 



3.8.0 



2 46- 



Illustrations of the Species in Plate VIII. 



Fig. 7. Side view: natural size. 



8. The corallum, from above. 



9. The calicular surface : highly magnified. 



10. The trabecular septa of the edge : highly magnified. 



This small Slephanophyllian is remarkable for not having the costulate base seen 

 in all other species ; but it is possible that the form is seated on a thin foraminifer. 

 The large size of the trabecular columella distinguishes it from Stephanophyllia Bower- 



