396 H. F. Tomes — Inferior Oolite Medreporaria. 



Cyathophyllia oolitica, Tomes. 



Eepeated and diligent search for this species has been rewarded 

 by the acquisition of two additional specimens, one from the Crickley 

 Coral-bed, and the other from the same horizon at Huddiknoll, near 

 the Horsepools, Gloucester, where the bed is much broken up and 

 in a mixed condition. In neither of these is the columella so large 

 or so clearly made out as in the type-specimen. 



Prof. Duncan takes great exception to my retaining the genus 

 Cyathophyllia, and after quoting Eeuss and Pourtales, and giving 

 cogent reasons for merging it into Antillia, as a subgenus of Circo- 

 phyllia, observes that the facies of the Oolitic species of Cyathophyllia 

 is not that of Antillia, and further " that any one who had studied 

 the simple Fungida would place the form in the neighbourhood of 

 Thecoseris, E. de From., the uniting and numerous septa being strong 

 characters amongst the group. One must demur, therefore, to the 

 admission of this comparatively unexamined form into the genus 

 Antillia (which has precedence of Cyathophyllia) ." Certainly. And 

 I do most decidedly demur to its being placed in Antillia, even with 

 the approbation of Eeuss and Pourtales, and fully intend to retain 

 it in Cyathophyllia. Examples of Cyathophyllia liassica (the type 

 species) and Cyathophyllia Oolitica are now before me, and in both I 

 observe the same crowded and anastomozing septa. Their generic 

 identity does not admit of any doubt, nor does any doubt exist in 

 my mind as to the propriety of retaining Cyathophyllia as a genus. 



Thamnosmilia, gen. nov. 



In the Oolite Marl of Leckhampton Hill, and at no other place, so 

 far as I at present know, is a branching coral which possesses some 

 of the characters of Bhabdophyllia, with the addition of a well- 

 developed and rugose epitheca. Although by no means rare there, 

 all the specimens I have seen have been completely inclosed in 

 matrix, and could only be obtained by the use of the chisel and 

 graver on some of the softer blocks. I define the genus as follows : — 



The corallum is bush-shaped, the corallites lessening in size very 

 gradually. Branching occurs unfrequently, and the branches are 

 thrown out at a considerable angle. The wall is thick, and the 

 epitheca well developed and very rugose. The calices are deep, 

 circular, and their margins are thin. The septa are numerous, 

 anastomozing, and passing into the columella, which is large, rugged, 

 and spongy. 



Thamnosmilia annulata, sp. nov. (Plate X. Figs. 7, 8, 9.) 

 The corallum is not of great size, the greatest diameter of a 

 corallite being only half an inch, and it consists of a peduncular 

 portion attached to a shell. Generally the corallites have a diameter 

 of two or thi-ee lines. They are seldom straight, but very frequently 

 considerably curved. The epitheca is very thick and wrinkled, and dis- 

 posed in rings around the corallites ; they are nearly equidistant from 

 each other and of nearly equal size, and they are continued the whole 

 height of the corallites. The calices are very deep, almost circular, 

 and a little expanded just at the margin, which is thin. The septa 



