E. F. TOMES ON THE GEEAT-OOLITE MADEEPOEAEIA. 179 



Ceyptoccenia tubeeosa, Dune, sp.* 



CyatJiophora tuberosa, Dune. Supp. Brit. Foss. Cor. pt. iii. p. 15, 

 pi. iii. figs. 15-18 (1872). 



A considerable number of specimens of this coral were obtained 

 by Miss Slatter at Fairford ; and the greater part of them are in a 

 beautiful state of preservation. I think it almost certain that the 

 specimen figured by Prof. Duncan was one of those collected at 

 Fairford, for reasons which I have already mentioned, and because 

 of its abundance there and its recorded absence from the coralline 

 deposits in the Great Oolite. 



Ceyptoccenia Peatti, M.-Edw. and Haime, sp. 



Cyaihophora Pratti, Edw. and Haime, Brit. Foss. Cor. p. 108, 

 pi. xxi. fig. 3 (1851). 



It would seem that this is far from being an abundant coral ; for 

 MM. Milne-Edwards and Haime speak of having seen only three 

 specimens, two of which came from the Great Oolite of Combe Down, 

 near Bath, and the other one has no locality assigned to it. I have 

 met with three instances only of its occurrence, two specimens 

 having been found by me in the railway -cutting near Stonesfield, 

 and the third was taken from the surface of a field at Glympton, 

 near "Woodstock, by the late Mr. Charles Faulkner, of Deddington. 

 It was associated with a great number of examples of Isastrcea 

 limitata. 



The corals referred by me to this species, in my paper in the sixth 

 volume of the ' Proceedings of the Geologists' Association,' I have 

 now reason to believe were incorrectly assigned to it. 



Ceyptoccenia miceophylla, n. sp. Plate VII. fig. 2. 



The corallum is massive, more or less expanding, and has the 

 upper surface gibbous, and in some specimens rising into dome- 

 shaped prominences. 



The calices are rather thinly placed, very small, prominent, and 

 have very thick walls. 



There are two cycles of septa; the primary ones are six in 

 number, and extend to about two thirds of the distance to the 

 centre of the calice. The secondary septa are merely rudimentary. 

 The intercalicalar costse are stout, prominent, and correspond with 

 the cycles of septa. They are of equal size ; and when opposite those 

 from other calices, they do not blend with them ; and when placed 

 alternately, they might almost be said to interlace with each other. 



The diameter of the calices is about three fourths of a line, and 

 the spaces between them about twice that measurement. 



The present species differs from all the Oolite ones I have seen in 

 having the calices smaller, the walls thicker and more prominent, 

 the second cycle of septa rudimentary, and the intercalicular costte 

 of equal size, and not continuous with those from other calices. 



* This species bears so close a resemblance to C. luciensis that it may very 

 probably prove to be identical with it. 



Q. J. G. S. No. 154. o 



