CONTENTS. ' Vll 



Page 

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

 Pseudopiis. By Dr. Albert Gunthee, 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 (lihmoce)-otes) , and on the 

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

 (Plate XI.) 350 



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

 nites. By Ernst Favre 3G2 



XLni. Description of a new Snake from Madagascar. By Dr. A. 

 GiJNTHER, F.R.S 374 



XLIV. Reply to Professor Verrill's " Remarks on certain En'ors 

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

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



Neio Books : — Bii-ds of the Humber District, by John Cordeaux. — 

 Lecture on the Ferae Naturae 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 Tolypciites, by Dr. J. E. Gray, F.R.S. &c. ; 

 Obsei-vations on the Structnre of the Proboscis of an Herma- 

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

 French Measiu-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 



XL VI. Notes on the Palaeozoic Bivalved Entomostraca. No. X. 

 Entomis and Entomidella. By Prof T. Rupert Joj^es, F.R.S., 

 F.G.S 413 



XLVn. Contribution to our Knowledge of Ceratophrys and 

 Megcdophrys. By Dr. Albert Gijnther, F.R.S 417 



XLVIII. Note on the Discovery of Liyidium agile, Persoon (=Zia 

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

 M.A 419 



