CONTENTS. VU 



Page 

 XLVI. On the Pithecheir melanure of F. Cuvier. By J. Van der 

 HoEVEN 470 



XLVII. Characters of a new Burmese Streptaxis and of two forms 

 belonging to a peeuhar section of Relix collected by Captain Richard 

 H. Sank ey, Madras Engineers. By W. H. Benson, Esq 471 



XLVIII. On the Nomenclature of the Foraminifera. By Messrs. 

 W. K. Parker, M. Micr. Soc., and T. Rupert Jones, F.G.S 474 



XLIX. Remarks on the use of the Signs of Accent and Quantity 

 as Guides to the Pronunciation of Words derived from the Classical 

 Languages, with particular reference to Zoological and Botanical 

 Terms. By R. G. Latham, M.D., F.R.S. &c 483 



L. Descriptions of new and little-known species of Ceylonese 

 Nudibranchiate Mollusks. By Dr. E. F. Kelaart 488 



LI. Notes on British Mollusea, in answer to Mr. William Clark's 

 Remarks on " Gleanings in British Conchology." By J. Gwyn 

 Jeffreys, Esq., F.R.S 496 



Proceedings of the Royal Society ; Geological Society 499 — ^510 



On the Difficulty of defining the Species of Mollusea, by Dr. J. E. Gray, 

 ' F.R.S. &c.; Saxicava a Byssus-spinner, by F. H. West, Esq. ; 

 Fertile Hybrids of two species of Insects, by M. Guerin-Meneville ; 

 The Victoria regia used as Food ; On the Coiling of Tendrils, 

 by Prof. Asa Gray ; On the Habits of the Scythrops Novce Hoi- 

 landiee, by George Bennett, Esq. ; On a Nematoid Worm living 

 parasitically in the Egg of Limax griseus, by A. Barthelemy. 610 — 515 



Index » 516 



