CONTENTS. 



Page. 

 Art. IX. On some new species of Pentatrematites, By G. B. 



SowERBY, F.L.S., ^c 89 



Art. X. Extracts from a Letter addressed by Capt. Phillip 

 Parker King, R.K., F,R.S, and L.S., to N. A. Vigors, 



Esq,, on the »/lnimals of the Straits of Magellan 91 



Art. XI. Observations on some of the Mammalia contained in 

 the Museum of the Zoological Society. By N. A. Vigors, 

 Esq., M.J., F.R.S., Sfc, and Thomas Horsfield, M.D. 



F.R.S., Sfc 107 



Art. XIL Observations on the Loves of the Ants and the Aphides. 



By Major Gen. Hardwicke, F.R.S., Sfc 113 



Art. XIII. Analytical Notices of Books: 



A Descriptive Catalogue of the Lepidopterous In- 

 sects contained in the Museum of the Honourable East 

 India Company, ^c. By Thomas Horsfield, M.D., 



F.R.S., 8fc 115 



The Genera of Recent and Fossil Shells. By G. B. 



Sowerby, F.L.S., No. XXX 125 



Art. XIV. Proceedings of Learned Societies on subjects con- 

 nected with Zoology. 



Linnean Society . . . . t^.',. . . . 126 



Zoological Club of the Linnean Society . . , . . . 131 



