THE 



QUARTERLY JOURNAL 



OP 



THE GEOLOGICAL SOCIETY OF LONDON. 



PROCEEDINGS 



OP 



THE GEOLOGICAL SOCIETY. 



June 23, 1869. 



G. H. WoUaston, Esq., of the Geological Survey of England and 

 Wales ; Eichard Pearce, Esq., Swansea ; Eichard Moreland, jun., 

 Esq., Old Street, London ; James IS". Shoolbred, Esq., B.A., Assoc. 

 Inst. C.E., 3 York Buildings, Dale Street, Liverpool ; Fritz Gill- 

 man, Esq., 14 Ashley Place, Westminster, S.W. ; and Eichard 

 Abbay, Esq., B.A., Fellow of Wadham College, Oxford, were elected 

 Fellows of the Society. 



The following communications were read ; — 



1. On two New Species of Gyrodus. By Sir Philip de M. Gret- 

 Egerton, Bart., M.P., F.E.S., Y.P.G.S. 



1. Gyeodus Goweri, Egerton. 



Monsieur Thiollieee in his splendid work on the fossil fishes of 

 the Jura formation of Bugey — a work of singular merit cut short 

 by his untimely death — when speaking of the Pycnodonti of Agassiz, 

 says truly that "this family has the advantage over many others of the 

 Ganoid Order in the circumstance that the characteristic features 

 are true and easily appreciable, such as the form and arrangement 

 of the oral apparatus, the peculiarity of the scales, and the struc- 

 ture of the vertebral column." In fact, this family is in a manner 

 isolated from all others, and consequently (if the Acanthodei be 

 excepted) has been subjected to fewer modifications than any other 

 of the Ganoid Order during the long period which has elapsed since 

 its establishment by Professor Agassiz. Some of the most distinguished 

 palaeontologists have directed their attention to this subject : Quen- 



VOL. XXV. — PART I, 2d 



