Geological Society. 271 



Sphasroidea aud Prunoidea with medullary tests and radial spines. 

 They do not show any near relationship to the radiolaria described 

 from Devonian rocks in Europe, but in some features they resemble 

 the radiolarian faunas of Ordovician age in the South of Scotland, 

 Cornwall, and Cabrieres, Languedoc. 



No other fossils beyond a few simple sponge-spicules and, on two 

 or three horizons, some fragmentary impressions of Lepidodendron 

 aiistrale, have been found in association with the radiolaria. 



These New South Wales radiolarian deposits are by far the most 

 extensive of an}' hitherto known, and they are remarkable not only 

 for their great thickness but also for the manner in which the 

 radiolaria are preserved in the limestones, tuffs, and claystones. 



November 23rd, 1898.— W. Whitaker, B.A., F.R.S., 

 President, in the Chair. 



The following communication was read ; — 



' On the Remains of Amia from Oligocene Strata in the Isle 

 of Wight.' By E. T. Newton, Esq., E.R.S., F.G.S. 



The specimens described in this communication were found by 

 Mr. Clement Reid in the Bembridge Marls of Hamstead, and by 

 Mr. Colenutt in the Bembridge Beds and in the Osborne Series of 

 King's Quay, near Ryde. After a reference to species described in 

 America and referred to the genera Amia, Protamia, Hypamia, and 

 Pappichthys, the Author proceeds to the description of the specimens 

 in question, referring them all to the genus Amia. The specimens 

 include the following bones : — vertebrae, maxillae with the supple- 

 mentary bones, premaxillae, bones of the skull, dentary bones, 

 a parasphenoid, a clavicle, scales, and teeth. They are referred 

 to two new species of the genus Amia. The paper concludes with 

 a table of all the species hitherto recorded from America and 

 Europe. 



December 21st, 1898.— W. Whitaker, B.A, F.R.S., 

 President, in the Chair. 



The following communication was read : — 



' On a Megalosauroid Jaw from Rhnetic Beds near Bridgend, 

 Glamorganshire.' By E. T. Newton, Esq., E.R.S., F.G.S. (Com- 

 municated by permission of the Director-General of H.M. Geological 

 Survey.) 



The specimen which forms the subject of the present communi- 

 cation was obtained by Mr. John David of Porthcawl, from a mason, 

 and it has been presented to the Museum of Practical Geology. It 

 was derived from beds low down in the Rhaetic Series, which may 

 eventually have to be included in the upper part of the Keuper. 

 The lamellibranchs on the same slab appear to bo Pullastra arenicol i 



