556 PPvOCEEDINGS OF THE GEOLOGICAL SOCIETY. [June 25, 



the Lower Chalk of Gosau, Piesting and Bains de Bennes ; and the 

 recent forms are in the Pacific, Indian Ocean, and Ceylon seas. 



Cikcophyllia, Edw. & Haime, Hist. Nat. des Corall. vol. ii. p. 293. 



1. Circophyllia compressa, spec. nov. PI. XX. fig. 9. 



The corallum is tall, subturbinate, curved in the plane of the 

 greatest axis of breadth, and is compressed laterally from the small 

 peduncle to the deep calice. 



Thecalice is elliptical in shape ; its margin is stout ; the fossa is deep, 

 and the longer septa reach a well-developed columella with a flat top. 



The septa are of different and unequal sizes. There are five cycles 

 of them in six systems ; but the members of the fifth cycle are very 

 small, and do not reach far from the margin. The primary aud 

 secondary septa are equal ; and the tertiaries are nearly as large ; 

 but all are rather small. There are 48 septa that reach the columella. 



The costae are distinct, and are alternately large and small ; all 

 are delicate, straight, and slightly prominent. Those of the fifth 

 cycle are very distinct. 



The exotheca is well developed ; and there are annular traces of a 

 rudimentary epitheca. 



Height of type l^inch. Breadth of calice T 9 ^- inch. 



Loc. St. Bartholomew's, West Indies. 

 - Collection of Mr. P. T. Cleve, Stockholm.' 



2. Ciecophtliia Clevei, spec. nov. PI. XXI. fig. 10. 



The corallum is turbinate, slightly or decidedly compressed supe- 

 riorly, and has a small mamilliform peduncle. 



The calice is elliptical, open, moderately deep ; and its margins are 

 rarely incurved. 



The septa are in six systems ; and there are five cycles of them. 

 The septa of the highest cycles are small ; and those of the other cycles 

 are large, long, and reach the columella, which is distinct and flat. 



The wall is thick. The costse are subequal superiorly, and are 

 wide apart everywhere. 



The exotheca is slightly developed. 



Height of corallum 1| inch. Breadth of calice 2 inches. This 

 relative length and breadth of 3 to 4 is very general in specimens. 



Loc. St. Bartholomew's, West Indies. 



Collections of the University of Upsala and of Mr. P. T. Cleve, of 

 Stockholm. 



Most of the specimens, which are numerous, have been rolled ; 

 some are broken ; and others are partly imbedded in volcanic debris. 

 All indicate, however, that they had a vigorous nutrition ; for they 

 arc large forms, and possess numerous septa. 



Reuss, in his admirable description of the Anthozoa of Castel 

 Gomberto *, notices a form which has all the characters of the genus 

 Oyathophyllia, Fromentel & Ferry, except that he pronounces the 

 epitheca to have been worn off. 



Now this genus was established by the careful palaeontologists 

 whose names it bears to include one species from the Lias; but a year 

 * Op, cit. yoI. xxviii. 1868, p. 170. 



