CONTENTS. Vll 



Page 

 XXXIX. Description of a new Saurian (Hyalosazirus) allied to 

 Pseudopus. By Dr. AxBSiiT Gunther, F.R.S 351 



XL. Points of Distinction between the Spongiadae and the Fora- 

 minifera. By H. J. Carter, F.R.S. &c 351 



XLI. On the Dentition of Rhinoceroses (lihinacerotes) , and on the 

 Characters afforded by their Skulls. By Dr. J. E. Gray, F.R.S. &c. 

 (Plate XI.) 35G 



XLII. On some Works relating to a new Classification of Ammo- 

 nites. By Ernst Favre 3G2 



XLIII, Description of a new Snake from Madagascar. By Dr. A. 

 GtTNTHER, F.R.S 374 



XLIV. Reply to Professor Ven-ill's " Remarks on certain Errors 

 in Mr. Jeffreys's Article on the jNIoUusca of Europe compared with 

 those of Eastern North America." By J. Gavyn Jeffreys, F.R.S. 375 



New Books : — Birds of the Humber District, by John Cordeaux. — 

 Lecture on the Feras Naturse of the British Islands, by John 

 Colquhoun 377—381 



Proceedings of the Royal Society 383 — 391 



Preliminary Notice of some Extinct Tortoises from the Islands of 

 Rodi'iguez and Mauritius, by Dr. Albert Giinther, F.R.S. ; On 

 the Dorsal Shield of Tolypeutes, by Dr. J. E. Gray, F.R.S. &c. ; 

 Observations on the Structure of the Proboscis of an Herma- 

 phrodite Nemertian from the Marseilles Coast, by M. E. Zeller ; 

 French Measui-es, by Dr. J. E. Gray, F.R.S. &c 397—400 



NUMBER LXVI. 



XLV. On the Advantage of a Dominant Language for Science. 

 By Alphonse de Candolle, Corresponding Member of the Aca- 

 d^mie des Sciences, Foreign Member of the Royal and Linnean 

 Societies, &c 401 



XLVI. Notes on the Palaeozoic Bivalved Entomostraca. No. X. 

 Entomis and Entomidella. By Prof. T. Rupert Jones, F.R.S., 

 F.G.S 413 



XLVn, Contribution to our Knowledge of Ceratophrys and 

 Megalophrys. By Dr. Albert Gunther, F.R.S 417 



XLV 111. Note on the Discovery of Ligidium agile, Persoon (=Zta 

 Saundersit, Stebbing), in Great Britain. By the Rev. A. M. Norman, 

 M.A 419 



