THE 



QUARTERLY JOURNAL 



OF 



THE GEOLOGICAL SOCIETY OF LONDON. 



PROCEEDINGS 



OP 



THE GEOLOGICAL SOCIETY. 



March 8, 1865. 



The Eev. T. H. Browne, High W5rcombe, Berks ; Thomas Grange 

 Hurst, Esq., Mining Engineer, Backworth, Northumberland ; and 

 W. R. Williams, Esq., Mining Engineer, Dolgelly, North Wales, 

 were elected Eellows. 



Professor Nilsson, of Stockholm, was elected a Foreign Cor- 

 respondent. 



The following communications were read : — 



1. A Description of the Echinodekmata from the Strata on the 

 South-eastern Coast of Arabia, and at Bagh on the Nerbudda, 

 in the Collection of the Geological Society. By P. Martin 

 Duncan, M.B. (Lond.), Sec.G.S. 



Contents. 



1. Introduction. 



2. Position of the strata. 



3. The rarity of described Asiatic pre- 



nummulitic Echinoderms. 



4. List of the species of Echinoder- 



mata. 



5. Other fossils in the collection. 



6. Description of the varieties and of 



a new species. 



7. Remarks on the affinity and 



identity of the species with those 



of other and remote Ci'etaceous 

 strata, and on the correlation of 

 the Arabian and Bagh beds with 

 the typical European series. 



8. The imjDossibility of establishing 



a close synchronism between the 

 Asiatic and other Cretaceous 

 strata. 



9. Eemarks on the identity, persist- 



ence, andvariability of the species. 

 10. Conclusion. 



1. Introduction. — There is a small collection of Echinoderms, Bra- 

 chiopods, Pectens, and Zoantharia in the Foreign Museum of the 

 VOL. XXI. — part i. 2 b 



