Page 



On a New Snake from the Galapagos Islands. By Dr. Albert 



GUNTHER 97 



Contributions to the Anatomy of the Giraffe. By T. Spencer 



CoBBOLD, M.D., F.L.S 99 



On the Occurrence of American Birds in Europe. By Herr 



H. Gatke of Heligoland 105 



On some Birds collected in Angola. By Dr. G. Hartlatjb, of 



Bremen, and J. J. Monteiro - 109 



Notes on the Habits of Menura alberti. By A. A. Leycester, 

 Esq. (In a Letter addressed to John Gould, Esq., F.R.S., 

 &c.) 113 



On the Reptiles of Siam. By Dr. Albert Gunther 113 



. Description of New Species of the Genera Bosinia and Cyclina 

 from the collection of H. Cuming, Esq. By Dr. E. 

 Homer of Cassel 117 



Note on the Punjab Sheep living in the Society's Gardens. 

 By Philip Lutley Sclater, M.A., Secretary to the 

 Society 126 



Notes on some Young Hybrid Bears bred in the Gardens of the 



Zoological Society. By A. D. Bartlett 130 



Note on the supposed occurrence of the Hirundo hicolor of 

 North America in England. By Alfred Newton, M. A., 

 F.Z.S., &c 131 



Description of a New Genus of Boidce discovered by Mr. Bates 



on the Upper Amazon. By Dr. J. E. Gray 132 



Descriptions of Thirty-six New Species of Land-shells from Mr. 



H. Cuming's Collection. By Dr. L. Pfeiffer 133 



Descriptions of New Species of Mollusca from the Sandwich 

 Islands. By W. Harper Pease. (Communicated by 

 Dr. J. E. Gray) 141 



Contributions to a Knowledge of the Reptiles of the Himalaya 



Mountains. By Dr. Albert Gunther 148 



On the Causes of Death of the Animals in the Society's Gar- 

 dens, from 1851 to the present time, 1860. By Edwards 

 Crisp, M.D., F.Z.S., &c 175, 190 



Additions to the Menagerie during the months of January and 



February .• 183 



Exhibition of the Egyptian Ibis, by Mr. F. Buckland 184 



Exhibition of Oreophasis derbianus ; and announcement of the 

 arrival of Sieboldia maxima and Balceniceps rex in the 

 Society's Menagerie, by P. L. Sclater, Secretary to the 

 Society ^ 184 



Extract from letter received by Mr. P. L. Simmonds, announcing 



the capture of a young female Gorilla 184 



Exhibition of specimens and drawings of Conurus cerebralis 



from the brains of the Common Sheep, by Dr. Crisp. ... 185 



Extract from the Bermuda ' Royal Gazette,' relating to the re- 

 cent capture of a large species of Oymnetrus, by J. Mat- 

 thew Jones, F.L.S 185 



Description of a New Species of Estheria from Nagpoor, Cen- 

 tral India. By W. Baird, M.D., F.L.S 188 



Descriptions of Three Species of Marine Shells from the Pacific 



Ocean. By W. Harper Pease .189 



