170 E. r. TOJIES ON iTADEEPOKAETA 



22. On some new or impeefectlt E:ifow]sr Mabeepoeaeia from the 



Geeat Oolite of the Cottnties of Oxeoed, Glotjcesiee, and 



SoMEESET. By Eobeet F. Tomes, Esq., P.G.S. (Eead January 



28, 1885.) 



[Plate V.] 



Tbte present paper is the result of continued search for Corals in the 

 Great Oolite, and must be taken as supplementary to the one I have 

 already published in the Journal of the Geological Society*. As 

 the information it contains is wholly supplementary, I do not 

 deem it necessary that a systematic classification of the species 

 should be very closely observed. 



A section will be given of fke Great Oolite at Milton, Oxfordshire, 

 where a coralliferous bed is exposed, and one also of the quarry 

 near Cirencester, from which the late Mr. Brown obtained most of 

 the Oolitic Corals which were given by him to the Oxford Museum. 

 These sections, accompanied by an enumeration of the corals obtained 

 from them, and some sections in the neighbourhood of Bath, with 

 the species they have yielded, constitute the principal part of the 

 paper. To this will be added notes and descriptions of some of the 

 species. 



The genus Bathycoenta, and its allies, I have already shown to be 

 characteristic of the Cornbrash ; but three specimens of Bathycoenia 

 Slatteri have lately been found at Combe Down, Bath ; and its 

 presence there, taken in connection with the prevalence of the well- 

 known Bradford-clay Encrinite in the corresponding coral-beds of 

 Parley Down and Hampton Down, would seem to point to a higher 

 geological level for the coralliferous deposits around Bath than I 

 have hitherto attributed to any of the Oxfordshire coral-beds. At 

 the same time it is desirable that I should mention the occurrence of 

 Bathycoenia Slatteri in the Great Oolite of the railway-cutting near 

 Bollright, where it was found by Mr. Jas. Windoes, of Chippiiig 

 Is'"orton, though its exact position in the section has not been 

 ascertained. Moreover, as I shall point out further on, there are 

 some stratigraphical reasons for believing the coral-bed at Caps 

 Lodge, near Burford, where also the same species of Bathycoenia has 

 been met with, and those near Bath, to be of nearly the same age. 



Some genera of Madreporaria, hitherto unknown in the Oolites 

 of this country, have been recently met with, and wall now be added 

 to the list of genera. They are BarysmiJia, Stylosmilia, ITeliocoenia, 

 and two new genera which I have designated Thamnocoenia and 

 Platast7'cea. 



Since the publication of my several papers on the Madreporaria of 

 the Jurassic formations of this country, Prof. Duncan has brought out 

 his " Revision of thePamilies andGenera of Sclerodermic Zoantharia'' t. 

 It is a valuable compilation, which by bringing together a great 

 number of references to the works of other zoophytologists, past and 

 present, renders the literature of the subject, comparatively speaking, 

 simple and easy. How fully the classification therein set forth by 

 * Vol. xxxix. p. 168. t Journ. Linn. Soc. vol. xyiii. Nos. 104-105, 1884. 



