VI CONTENTS. 



Page 



XXXI I. Notes on the British species of Curculionida belonging to 

 the genera Dorytomus and Elleschm. By John Walton, F.L.S. ... 310 



XXXIII. On a new genus and several new species of British Crus- 

 tacea. By C. Si'KNCE Bate. (With a Plate.) 318 



New Books .■ — Observations in Natural History, by the Rev. Leonard 



Jenyns, M.A., F.L.S. &c 321 



Proceedings of the Linnaean Society; Zoological Society; Botanical 



Society of Edinburgh 323 — 346 



Athanas nitescens, by William Thompson ; Description of a new spe- 

 cies of Mole {Talpa leucura, Blyth), by Ed. Blyth, Esq. ; On the 

 Analogy between the mode of Reproduction in Plants and the 

 "Alternation of Generations" observed in some Radiata, by 

 James D. Dana ; Note on Callichthys and Anableps, by J. P. G. 

 Smith, Esq. ; Botanical Travellers ; Meteorological Observations 

 and Table 346—352 



NUMBER XLI. 



XXXIV. Contributions to the Natural History of the Shark. By 

 Richard Hill, Corr. Mem. Zool. Soc. Lond., and M.C. Roy. Agr. 

 Soc. Jam 363 



XXXV. Zoological Notes and Observations made on board H.M.S. 

 Rattlesnake during the years 1846-50. — On the Anatomy of the genus 

 Tethija. By Thomas H. Huxley, Assistant Smgeon R.N. (With 



a Plate.) 370 



XXXVI. On a supposed new species of Rubus. By Fenton J. 



A. HoRT, B.A 374 



XXXVII. Characters of Tomichia, a new palustriue testaceous Mol- 

 lusk from Southern Africa, heretofore referred to the genus Truncatella. 



By W. H. Benson, Esq 377 



XXXVIII. On the Chemnitsite. By William Clark, Esq 380 



XXXIX. On some new Protozoic Annulata. By Frederick 

 M'CoY, Professor of Geology and Mineralogy in Queen's College, 

 Belfast 394 



XL. A Catalogue of British Spiders, incluiUng remarks on their 

 Structure, Functions, CEconomy, and Systematic Arrangement. By 

 John Blackwall, F.L.S 396 



XLI. On the Progress of Natural History in Ceylon : in a Letter 

 from Edg.\r L. Layard, Esq., to R. TEMrLETON, Esq 402 



