434 PROCEEDINGS OP THE GEOLOGICAL SOCIETY. [JunO 7, 



age. Mr. Tate did not consider these sandstones the equivalent 

 of the Patagonian sandstones, as the latter, from the shells con- 

 tained in them, would appear to be Pliocene or Pleistocene. 



Mr. Sawkins, in reply to a question from Mr. Tate, stated that 

 the only gold found in the country had probably been carried down 

 from the well-known gold-district of Upata. He also entered into 

 a few additional details connected with the chief points in his paper, 

 dwelling especially upon the physical features of the country, in 

 illustration of which several landscape drawings were exhibited. 



June 7, 1871. 



Henry Collinson, Esq., 7 Devonshire Place, Portland Place, W., 

 and Thomas Milnes Favell, Esq., of Eighton College, Gateshead, 

 were elected Fellows, and Dr. J. J. Kaup, of Darmstadt, was elected 

 a Foreign Member of the Society. 



The following communications were read : — 



1. On the Peesistence of Cartophyllia cylindeacea, Beuss, sp., a 

 Cretaceous Species of Coral, in the Coral fauna of the Deep Sea. 

 By P. Martin Duncan, M.B. Lond., F.P.S., F.G.S., Professor of 

 Geology in King's College, London. • 



The simple stony coral Caryophyllia cylindracea, Eeuss, sp., is, com- 

 paratively speaking, a common fossil in the "White Chalk. 



Lonsdale described the form, under the name oi Monocarya centralis, 

 in Dixon's ' Geol. of Sussex,' 1850 ; but it appears that MM. Milne- 

 Edwards and J. Haime had already named the species Cyathina 

 Icevigata in their Monographic des Turbinolides, ' Ann. des Sci. Nat.' 

 3^ serie, t. ix. p. 290, 1848. 



D'Orbigny recognized the species in 1850 as a form which had 

 been described by Eeuss in 1846 under the name of Antliophyllum 

 cylindraceum (' Kreideformation,' p. 61, pi. 14. figs. 23-30); and 

 after altering the generic title, he created that of Cyathina cylin- 

 dracea. 



MM. Milne-Edwards and Jules Haime described the coral in their 

 monograph of the British Fossil Corals (Palseontog. Society, 1850) 

 under the name Cyathina Iwvic/ata, and, after recognizing the pri- 

 ority of E.euss in their ' Hist. Nat. des Coralliaires,' finally accepted 

 the name of Caryophyllia cylindracea, Peuss, sp. 



I have referred to the species in the Supplement to the ' British 

 Fossil Corals' (Palaentog. Soc.) and in the Report on the British 

 Fossil Corals to the British Association. 



Hitherto Caryophyllia cylindracea, Reuss, has been considered a 

 characteristic fossil of the White Chalk ; and its horizon does not 

 appear to have reached that of the uppermost beds of that series. 



