IV CONTENTS. 



Page 



IX. Notes on the Animals of Rhaphaulus Chrysalis, Pupina artata, 

 Otopoma clausum, Helix Achatina, and H. pyldica. By W. H. Ben- 

 son, Esq 93 



X. Descriptions of four new Species of Humming-birds from Mexico. 



By John Gould, Esq., F.R.S. &c 96 



XT. On Dracunculus and Microscopic Filaridce in the Island of 

 Bombay. By H. J. Carter, Esq., Bombay 98 



XII. List of Coleoptera received from Old Calabar, on the West 

 Coast of Africa. By Andrew Murray, Edinburgh 116 



XIII. Descriptions of new Genera and Species of Phytophagous 

 Insects. By J. S. Baly, Esq 124 



XIV. On DicUdanthera. By John Miers, F.R.S., F.L.S. &c.... 129 



XV. Notes on the Hydroid Zoophytes. By Prof. Allman 137 



Proceedings of the Zoological Society 144 — 156 



Collecting-Basket for the Sea- side, by W. T. SuiFolk, Esq. ; On the 

 Heating of the Soil of high Mountains, and its Influence upon 

 the Limit of eternal Snow and Alpine Vegetation, by Ch. Mar- 

 tins ; On the Artificial Propagation of Salmon. By A. D. Bart- 

 lett. Esq 157—160 



NUMBER XXI. 



XVI. Description of a new genus of West African Snakes, and 

 Revision of the South American Elaps. By Dr. Albert Gijnther. 

 (With a Plate.) 161 



XVII. Remarks on Professor Allman's " Notes on the Hydroid 

 Zoophytes." By T. Strethill Wright, M.D 174 



XVni. On the Laws of Evolution of the Organic World during 

 the Formation of the Crust of the Earth. By H. G. Bronn 175 



XIX. On the Development of Roots and the Exfoliation of the 

 Cellular Coats of their Extremities. By Arthur Henfrey, F.R.S. 184 



XX. Additional Gleanings in British Conchology. By J. Gwyn 

 Jeffreys, Esq., F.R.S .' 189 



XXI. Researches on the Cellular Formations, the Growth, and the 

 Exfoliation of the Radical and Fibrillar Extremities of Plants. By 

 MM. Garreau and Brauwers 201 



XXII. On the Reptiles from St. Croix, West Indies, collected by 

 Messrs. A. and E. Newton. By Dr. A. Gunther. (With a Plate.),.. 209 



