ALCYONAEIA OF SIND. 77 



Locality. Near Eaduk, 10 miles south-east of Jhangara, in the Nari group. 

 Survey-number G ^7^4^- 



Elustration of the Species in Plate XIII. 

 Fig. 10. The corallite : natural size. 



Genus RHABDOPHYLLIA, Jf. Ed. &J. H. 



1. Rhabdophyllia Naeiensis, Duncan. Plate XVIII, Figs. 14-16. 



The corallum is short, slender, cylindroid, compressed, and marked with trans- 

 verse growth-rings. 



The epitheca is delicate, and where worn exposes three very thin costse between 

 two larger ones. The fractured ends show twelve large septa with swollen internal 

 edges, and twelve more slender ones; and usually between these and the thicker a 

 minute septum exists. 



The septa are crowded, and correspond to similar sized costse. There is no colu- 

 mella. The endotheca is scanty. 



Height of corallum 1 inch ; greatest breadth -j^ inch. 



Locality. West of Bhagathoro Hill, south of Sehwan, in the Nari group. Survey- 

 number G -7-^. 



Illustrations of the Species in Plate XVIII. 



Fig. 14. The corallum : natural size. 



15. Transverse section : magnified. 



16. Costse: magnified. 



Genus LEPTOEIA, Jf. Ed. & J. H. 



1. Leptobia concenteica, Duncan. Plate XXIII, Figs. 1, 2. 



This species is found at the base of the Nari series, or in the topmost strata of the 

 Khirthar rocks ; but the type is from a higher horizon in the Gaj series. 



Genus M^ANDEINA, M. Ed. & J. H. 

 1, M^ANDEINA Medlicotti, Duncan. Plate X, Figs. 15, 16. 



The corallum is large, broad, short, somewhat convex above, and rather concave 

 below, where there is an epitheca. 



The series are excessively gyrose and frequently bifurcate, and are almost without 

 any limit; they are shallow and narrow, very equal in their breadth, and the interserial 



edge is sharp. 



The septa are short, enlarged within, and mostly are subequal. Occasionally a 

 small septum intervenes, but usually the simUarity of size is remarkable. 



The columella is rudimentary. 



There are about twenty septa in j^ inch. 



