ALCYONAEIA OF SIND, 17 



The fossil Corals collected by Mr. Fedden, F.G.S., of the Geological Survey of 

 India, from beds beneath the Trap underlying the Nummulitic series of Sind, were 

 obtained from Jakhmari, in the Laki range, south-west of Amri, and from Barki nala, 

 north of Eanikot, in the Laki range. Their general position has been noticed in a 

 former page, and they are found in the Olive sandstones and in a more recent geological 

 horizon than that of the Hippurite limestone. The fossils are usually well preserved, 

 are calcareous, and their surfaces are of a light-brown tint. Usually dark calcite has 

 replaced the hard parts of the corals deeply. 



The fossil Corals belong to the Madreporaria aporosa and to the Madreporaria 

 perforata — the first group being represented by the genera Caryophyllia, Trochocyathus, 

 Smilotrochus, and Bhabdophyllia, and the last by the genus lAtliaroea. 



None of the forms of Corals described by MM. d'Archiac and Haime in their 

 classical work are found in the Cretaceous series. 



Section MADREPORARIA. 



Group MADREPOEARIA APOROSA, Milne-Edwards ^ Jules Haime. 

 Family TUEBINOLIDyE. 



Subfamily CAETOPHYLLIACE^. 



Genus CAEYOPHYLLIA, Stokes (limited). 



1. Cakyophyllia compressa, Duncan. Plate I, Figs. 1-4. 



The corallum is compressed from side to side, slightly bent in the plane of the 

 minor axis, adherent to a foreign body by a small oval base. The calice is elliptical 

 in outline and rather pointed at the extremities. The costae are distinct from the 

 base upwards, alternately large and small, becoming more subequal at the calice, blunt, 

 rather largely granular and rather close ; those at the extremity of the calice are the 

 largest. The calice is shallow ; the columella is large ; the septa are alternately long, 

 stout, sharply granulated at the sides, and small, the smallest being much thinner 

 than the corresponding costse. There are four cycles of septa, complete in six systems ; 

 and there are short pali before the tertiary septa. 



Height of corallum -yo inch. 



Length of calice -g^- inch ; breadth of calice -^ inch. 



Locality. Jakhmari, Laki range, west of Amri. Survey-number Gi ffy. 



Illustrations of the Species in Plate I. 



Fig. 1. Side view of the corallum. 



2. View of part of a calice : magnified. 



3. The base : natural size. 



4. Costse near the calice : magnified. 



2. Caeyophyllia Indica, Duncan. Plate I, Figs. 5-7. 



The corallum is conical, truncate, and nearly straight. The calice is circular in 



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