Geological Society. G3 



formation he has determined about sixty species, including the 

 Textularidae. They belong to the genera : — 



Psammosphsera. Placopsilina. 



Astrorhiza. Trochammina. 



Rbabdammina. Hormosina. 



Mareipella. Webbina. 



Hvperammina. Thuraminina. 



Lituola. Textularia (Plecanium). 



Eeophax. Bigeneriua. 



Haplophragmium. Valvulina. 

 Haplostiche. 



A few species are identical with Carboniferous or Permian forms ; 

 1 but most of them most nearly approach recent deep-sea species and 



varieties, although similar forms do not occur in the younger for- 

 mations. The species described in the present paper are from the 

 zone of Aram, transversarius, and aro as follows : — Psammosphcera 

 fusca, Schultze ; TL/perammina vagans, Brady ; lieophax midtilocu- 

 laris, sp. n. ; H. helvetica, Hausl. ; H. scorpiuras, ilontf. ; Placo- 

 psilina arenacea, d'Orb. ; Tharammina papillata, Brady ; and T. 

 hemisphcerica, sp. n. Most of the recent genera of Astrorhizidae 

 and Lituolidse would seem to have been represented by species 

 identical with, or nearly allied to, those now existing, at the time of 

 deposition of the beds with Ammonites transversarius. 



December 6, 1882.— J. W. Hulke, Esq., F.R.S., 



President, in the Chair. 



The following communication was read : 



" Note on a Wealden Fern, Oleandridium (Tceniopteris) Bey- 

 richii, Schenk, new to Britain." By John E. H. Peyton, Esq., 



F.G.S. 



This fern, figured by Schenk in the ■ Palaeontographica * (vol. xix. 

 plate xxix. figs. 6, 7), was discovered near Minden, in the North- 

 west German Wealden-beds, and appears to have been hitherto 

 unknown in England. It was first discovered in the Wadhnrst 

 Clay (" Tilgate stone '" of Mantell) of the cliffs east of Hastings, by 

 Mr. Charles Dawson, of Warrior Terrace, Bfc. Leonards, who has a 

 fine collection of Wealden fossils, and was brought to my notice by 

 Professor Augusto de Linares, of the Valladolid University, who has 

 lately discovered the Wealden in the north of Spain. 



This specimen*, which I have much pleasure in presenting to the 

 Society for their Museum, I found about a fortnight ago, also in our 

 local 4t blue stone r from the Wadhnrst Clay of the Hastings cliffs. 



In connexion with the flora of the Wealden, I may perhaps 

 mention that, besides the ordinary ferns recorded by Mantell, 

 Eitton, Topley, and others, viz. Lonchopteris Mantelli, Sphenopteris 



* It varies slightly from the one figured by Schenk in the nervures; and 

 the midrib is " herring- boned. * It bears a strong resemblance to Tceniopteris 

 vittata (Brongn.) of the Trias (Geikie's ' Text-Book of Geology/ fig. 358) ; 

 compare also T. scit an rinecs- folia (Sternberg), from the Stonesfield beds 

 (Phillips's ' Geology of Oxford/ Diagram xxx. fig. 8). 



