ALCYONAEIA OF SIND. 21 



A young coral of the genus Smilotrochus, probably belonging to this species, is 

 amongst the collection. 



Fig. 22. Side view of young corallum. 



23. The costse, magnified, showing alternate large and small costse. 



This genus received many new species during the description of the Lower Creta- 

 ceous Corals of England by myself, and they rather abound in the Upper Greensand 

 and Gault ; but the shape of the coral and the details of the costse would distinguish 

 the Indian forms. 



MM. Milne-Edwards and Haime describe and figure a species from the Upper 

 Greensand horizon of Farringdon, called Smilotrochus Austeni, which has greater aflni- 

 nities than any other with the Indian forms ; and they state that Smilotrochus Hagenowi, 

 which they neither describe nor delineate, only difiers from Smilotrochus Austeni by its 

 less numerous and subflexuous costse. It is from the Maestricht Chalk. 



Family OCULINIDM 



Transition-Group STYLOPEOBINJE. 



Genus STYLOPHORA. 



Stylophora, M. Ed. ^ J. Haime, Hist. Nat. des Gorall. vol. ii. p. 133. 



1. Stylophoka species. Plate III, Fig. 15. 



A portion of a terminal branch of a Stylo])hora, with numerous calices, some close, 

 and others separated by a small amount of coenenchyma, which is plain. The costse are 

 slightly prominent ; the septa, twelve in number, are small, six being the largest, and 

 the columella is small. It is quite possible that it may be one of the Stylo;phora- 

 contorta, Leymerie, group, which is elsewhere found in the Nummulitic series. 



The genus is largely represented in the Tertiary and Eecent formations of Europe 

 and of the West Indies. 



The specimen is on the same block as Smilotrochus Blanfordi. 



From Barah, Laki range. 



Family ASTM^ID^. 



Suhfamily LITHOPHTLLIAOE^ GJESPITOS^. 



Genus RHABDOPHYLLIA. 



Ehabdophyllia, M. Ed. Sf J. Haime, Hist. Nat. des Gorall. vol. ii. p. 342. 



The corallum is in the form of a branching bush. The corallites are long and sub- 

 cylindrical ; their walls are naked, and present along their whole length distinct granular 

 costse. The contour of the calices is irregular ; the columella is spongy and well deve- 

 loped ; the septa are short, and the endotheca is scanty. 



This diagnosis embraces many species of the Triassic, Jurassic, Cretaceous, and 



