ON THE BRITISH FOSSIL CORALS. 89 
they project into the circular calice, but are not exsert. A section proves 
that they are very stout even low down in the corallum. 
Length of corallum 1 inch. Diameter of the calice 4 inch. 
Locality. Charlton, Kent. 
In the collection of the Rev. T. Wiltshire. 
This species is mimetic of Parasmilia serpentina, Ed. & H., from the same 
geological horizon, just as T’hecosmilia cylindrica is of Parasmilia cylindrica. 
The Stylotrochi of the Cambridge Upper Greensand are closely allied to the 
Upper-Cretaceous form. 
Family ASTRAIDA. 
Genus TRocHosMILIA. 
Subgenus Celosmilia. 
It is a great question whether Celosmilia can stand as a genus. It is im- 
possible to separate its species from those of Yrochosmilia by an external 
examination; and sections prove that there is no columella and a very 
seanty endotheca. Still there is an endotheca ; and the visceral cavity is not 
open from top to bottom, as in the Turbinolide. It is true that there is a 
facies common to the Celosmilic, and that they are a natural group ; but in 
fact they would not differ from a well-known Zrochosmilia with scanty endo- 
theca, were there such aspecies. On studying the genus J’rochosmuilia, it will 
be noticed that many of its species have never been described with reference 
to their endotheca. Many were determined from one or two specimens, and 
sections of the majority have not been taken, Now Tvrochosmilia sulcata, 
Ed. & H., has very little endotheca; it is a species from the Gault, and the 
Celosmilic are all from the Upper Cretaceous, Eocene, and recent coral-faune. 
In placing Celosmilia as a subgenus, but included in Trochosmilia, it must be 
admitted that the classification becomes simpler and more natural. Since 
MM. Milne-Edwards and Jules Haime published their ‘ Hist. Nat. des Coral- 
liaires’ some new species of Closmilia have been published or described. 
The known species were as follows :— 
1. Coelosmilia poculum, Ed. § H. Recent. 6. Colosmilia Atlantica, D’Orb. Tuber 
o. Faujasi, Ed. ¢ H. White Chalk. Creek, New Jersey. 
3. —— punctata, Ed. § H. WhiteChalk. 7. excavata, Hag., sp. 
4, 
5. 
laxa, Ed. § H. Norwich Chalk, 8, —-— radiata, Quenstedt, Natheim. 
—— Edwardsi, D’ Orb. Sezanne. 
The new species are ;— 
10. Ceelosmilia elliptica, Reuss. Castelgom- 14. Coelosmilia Woodwardi, Duncan. White 
berto. Chalk, England. 
Al; Javana, Duncan, MS. Java. 15. —— granulata, Duncan. White Chalk, 
12 —— cornucopix, Duncan. Trimming- England. 
ham chalk. 16. —— cylindrica, Duncan, White Chalk, 
13. Wiltshiri, Duncan. Norwich Chalk. England. 
The species cornucopie, Wiltshiri, Woodwardi, granulata, and cylindrica 
are new to British palzontology, and are very characteristic of the Upper 
Chalk. 
I have discovered three well-marked varieties of CO. lava. 
An analysis of the species produces the following results :— 
1. The species Atlantica, punctata, Hdwardsi, excavata, and radiata either 
pertain to other species, or are really indeterminable. 
2. The species whose septal arrangement shows more cyeles than four, or 
some septa of the fifth cycle, are :— 
1868. H 
