ON THE BRITISH FOSSIL CORALS. 83 
29. Stephanophyllia diseoides, Ed. & H. 34. Dendracis Lonsdalei, Duncan, 
30. Balanophyllia desmophyllum, Lonsdale, 35. Porites panicea, Lonsdale. 
sp. 36. Litharea Websteri, Bowerbank, sp. 
31. Dendrophyllia elegans, Duncan. 37. Axopora Forbesi, Duncan. 
32. —— dendrophylloides, Lonsdale. 38. Parisiensis, Michelin. 
33. Stereopsammia humilis, Kd. g H. 
Notice of the Species. 
Turbinolia suleata, Lamarck, is found in the Eocene deposits at Grignon, 
Hauteville, and Ghent, and is not found, I believe, in higher beds than the 
Bracklesham in England. The other species are purely British. TZ. Prest- 
wichti, Ed. & H., is probably the oldest form, and 7’. suleata and T. Dixont 
are next in age. The remaining species come from the Barton beds. With 
the exception of the occurrence of 7’. swlcata in the Parisian Eocene, there is 
little to connect these Turbinoliz with others. The genus is not represented 
in the great Nummulitic coral-fauna of the South of France, the North 
of Italy, or of Sindh. A species is found in the Eocene of Alabama; and 
three species, characterized by very bad specimens, were determined from 
forms found in the Lower Oligocene deposits of Germany. The genus is 
extinct. 
The genus Leptocyathus is one of those artificial groups which surround the 
great genus T’rochocyathus. It is closely allied to Stephanocyathus, Seguenza ; 
and indeed the only distinction between these two genera is the distribution 
of the pali before certain septa. Doubtless some further information will 
enable those interested in the classification of the Zoantharia to make the 
genera Leptocyathus and Stephanocyathus mere subgenera of Trochocyathus. 
L, elegans is a very beautiful form ; and the structure of its base is a curious 
instance of symmetry and simplicity of structure, producing in a coral which 
doubtless was a dweller in deepish water and on an oozy bottom, great per- 
fection of ornamentation. 
There is a second species, Z. Atalayensis, D’Archiac, sp., from the Eocene 
of Biarritz ; but there is some doubt about its genus. 
The Trochocyathi of the British Eocene are insignificant species of the 
great genus which is so fully represented in the Sindhian and European 
Nummulitic series. I have noticed in my ‘ Supplement to the British Fossil 
Corals,’ Part I., that it is doubtful if 7. sinuosus was ever found in England, 
and I have described two new species. 
One of these, 7’. Austeni, Duncan, is the representative in the Brackles- 
ham deposits of 7’. elongatus, Ed. & H., of the Eocene of Quartier-du-Vit 
(Basses Alpes) ; but 7’. insignis, Duncan, so readily distinguishable by its 
costal ornamentation and wavy spino-granulose septa, is very solitary as 
regards its affinities. The Zrochocyathi commenced in the Jurassic period, 
culminated in the Miocene, and are extinct, being represented by the Cary- 
ophyllie of the Pliocene and recent coral-faune. 
There are several genera of perforate corals in the British Eocene. Four 
genera of these belong to the Hupsammide, one to the Turbinarine, and 
two to the Poritide. 
The Eupsammian genera are :— 
Stephanophyllia. Dendrophyllia. 
Balanophyllia. Stereopsammia. 
The Stephanophyllie are Cyclolitoid EHupsammide, and range from the 
White Chalk to the Pliocene. 
The Cretaceous species form a group readily distinguished from the Ter- 
