CONTENTS. V 



Page 



XIX. Remarks on DicA-iVia. By John Ralfs, Esq. (With a Plate.) 204 



XX. A few Remarks upon the Crag of Suffolk. By W. B. Clarke, 

 M.D., of Ipswich 205 



Proceedings of the Zoological Society ; Linnaean Society ; Botanical 



Society of Edinburgh 211—235 



Holostomum cuticola, by Robert "Wigham (with a Plate) ; On the Oc- 

 currence of TrigonelUtes in the Upper Chalk at Norwich, by T. 

 G. Bayfield ; Locahties of rare British Crustacea, by Alexander 

 G. ^lelville ; Note on Pedicellaria, by Arthur Adams ; Addendum 

 to ilr. Benson's Paper on Cyclostoma ; Terebella medusa, by C. 

 Spence Bate ; Meteorological Observations andTable 235 — 240 



NUMBER XLM. 



XXI. On the Cidaridee of the OoUtes, with a description of some 

 new species of that family. By Thomas Wright, M.D. &c. (With 

 three Plates.) 241 



XXII. Observations on the Connexion between the Crinoideee and 

 the Echinodermata generally. By Thomas Austin, F.G.S., Fort 

 Major, &c 280 



XXIII. Descriptions of two new species of Nudibranchiate Mollusca, 

 one of them forming the type of a new genus. By Joshua Alder 

 and Albany Hancock. With the Anatomy of the Genus, by 

 Albany Hancock, (With two Plates.) 290 



XXrV. On Chantransia, Desv. By John Ralfs, Esq 302 



XXV. A List of all the Mosses and Hepaticai hitherto observed in 

 Sussex. By William Mitten, A.L.S 305 



XXVI. On the Development of the Cirripedia. By C. Spence 

 Bate. (With three Plates.) 324 



XXVII. A Catalogue of British Spiders, including remarks on their 

 Structiu^, Functions, (Economy, and Systematic Arrangement. By 

 John Blackwall, F.L.S 332 



Proceedings of the Zoological Societj'; Botanical Society of Edin- 

 burgh '. 339—346 



Orthagoriscus mola, by Dr. John Alex. Smith ; Carcharias Vulpes, by 

 Dr. J. Har^•ey ; On the Arrangement of Fossil Animal Remains 

 in Collections, by J. E. Gray, Esq., F.R.S., V.P.Z.S. &c. ; Early 



